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The crowded universe : the search for living planets / by Boss, Alan,1951-;
A new space race -- The struggle to find new worlds -- Eccentric planets -- Kiss my lips, Tootsie -- The Mars gold rush -- Instability : if I did it, here's how it happened -- The battle of Prague -- The Comedy Central approach -- Transits gone wild -- 300 solar systems and counting -- Why don't you ever call?.Astronomer Alan Boss argues that based on what we already know about planetary systems, in the coming years we will find abundant Earths, including many that are indisputably alive. Life is not only possible elsewhere in the universe, Boss argues-it is common. Boss describes how our ideas about planetary formation have changed radically in the past decade and brings readers up to date on discoveries of bizarre inhabitants of various solar systems, including our own. America must stay in this new space race, Boss contends, or risk being left out of one of the most profoundly important discoveries of all time: the first confirmed finding of extraterrestrial life. --from publisher description
Subjects: Habitable planets.; Extrasolar planets.; Exobiology.;
© c2009., Basic Books,
Available copies: 1 / Total copies: 1
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Strange new worlds : the search for alien planets and life beyond our solar system / by Jayawardhana, Ray.;
Includes bibliographical references (p. [239]-244) and index.Quest for other worlds : the exciting times we live in -- Planets from dust : unraveling the birth of solar systems -- A wobbly start : false starts and death star planets -- Planet bounty : hot Jupiters and other surprises -- Flickers and shadows : more ways to find planets -- Blurring boundaries : neither stars nor planets -- A picture's worth : images of distant worlds -- Alien earths : in search of wet, rocky habitats -- Signs of life : how will we find E.T.?Astronomer Ray Jayawardhana discusses the scientific quest to discover other planets and life in the universe, describing breakthroughs into the early twenty-first century, and examining the tools and technology available to scientists seeking life on other worlds.
Subjects: Extrasolar planets.;
© c2011., Princeton University Press,
Available copies: 1 / Total copies: 1
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Mirror Earth : the search for our planet's twin / by Lemonick, Michael D.,1953-;
Includes bibliographical references and index.The man who looked for blinking stars -- The man who looked for wobbling stars -- Hot Jupiters : who ordered those? -- An ancient question -- The dwarf-star strategy -- Imagining alien atmospheres -- Invasion of the female exoplaneteers -- Kepler approved -- Waiting for launch -- Kepler scooped -- "A 100 percent chance of life" -- The Kepler era begins -- Beyond Kepler -- How many Earths? -- What does "habitable" really mean? -- A world made of rock, at last -- Astronomers in paradise -- Sara's birthday party."In the mid-1990s, astronomers made history when they detected three planets orbiting stars in the Milky Way. The planets were nothing like Earth, however: They were giant gas balls like Jupiter or Saturn. More than five hundred planets have been found since then, yet none of them could support life. Now, armed with more powerful technology, planet hunters are racing to find a true twin of Earth. Science writer Michael D. Lemonick has unique access to these exoplaneteers, as they call themselves, and Mirror Earth unveils their passionate quest. Geoff Marcy, at the University of California, Berkeley, is the world's most successful planet hunter, having found two of the first three extra-solar planets. Bill Borucki, at the NASA Ames Research Center, struggled for more than a decade to launch the Kepler mission--the only planet finder, human or machine, to beat Marcy's record. David Charbonneau, at Harvard, realized that Earths would be much easier to find if he looked at tiny stars called M-dwarfs rather than stars like the Sun--and that he could use backyard telescopes to find them! Unlike those in other races, the competing scientists actually consult and cooperate with one another. But only one will be the first to find Earth's twin. Mirror Earth is poised to narrate this historic event as the discovery is made"--
Subjects: Extrasolar planets.; Planetology.;
© 2012., Walker,
Available copies: 1 / Total copies: 1
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The little book of exoplanets / by Winn, Joshua,author.;
Includes bibliographical references (pages [263]-266) and indexes.Introduction -- The old worlds -- The age of exploration -- Here, there be giants -- The new worlds -- Strange new worlds -- Strange new suns -- The worlds to come."A concise and accessible introduction to exoplanets that explains the cutting-edge science behind recent discoveries. For centuries, people have speculated about the possibility of planets orbiting distant stars, but only since the 1990s has technology allowed astronomers to detect them. At this point, more than five thousand such exoplanets have been identified, with the pace of discovery accelerating after the launch of NASA's Transiting Exoplanet Satellite Survey and the Webb Space Telescope. In The Little Book of Exoplanets, Princeton astrophysicist Joshua Winn offers a brief and engaging introduction to the search for exoplanets and the cutting-edge science behind recent findings. In doing so, he chronicles the dawn of a new age of discovery-one that has rapidly transformed astronomy and our broader understanding of the universe. Scientists now know that many Sun-like stars host their own systems of planets, some of which may resemble our solar system and include planets similar to the Earth. But, Winn tells us, the most remarkable discoveries so far have been of planets with unexpected and decidedly un-Earth-like properties, which have upended what we thought we knew about the origins of planetary systems. Winn provides an inside view of the sophisticated detective work astronomers perform as they find and study exoplanets and describes the surprising-sometimes downright bizarre-planets and systems they have found. He explains how these discoveries are revolutionizing astronomy, and he explores the current status and possible future of the search for another Earth. Finally, drawing on his own and other scientists' work, he considers how the discovery of exoplanets and their faraway solar systems changes our perspectives on the universe and our place in it"--
Subjects: Extrasolar planets.; Astrophysics.; Astronomy.;
Available copies: 1 / Total copies: 1
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The life of super-Earths : how the hunt for alien worlds and artificial cells will revolutionize life on our planet / by Sasselov, Dimitar D.;
"In the past year, we have witnessed unprecedented breakthroughs in the seemingly unrelated fields of synthetic biology and exoplanetary astronomy. Just recently, arsenic-based bacteria was discovered in a California lake-both puzzling and electrifying the scientific world. In The Life of Super-Earths, expert astronomer Dimitar Sasselov aims to highlight these groundbreaking findings and explain how what we learn in the laboratory informs our investigation of the universe, and vice versa. The discovery of a New Earth, or other world, may be in our future. But a truly 'alien' life form is more likely to emerge from our planet's natural environment or in a petri dish at a research lab. We may cross a milestone into the era of synthetic biology under the microscope. These breakthroughs will shed new light on our place in the universe and answer the age-old question: Are we alone in the universe? The Life of Super-Earths offers nothing short of a revolution in our understanding of life and its place in the cosmos"--Includes bibliographical references and index.Introduction : The mystery of life -- Extrasolar planets at last -- The world of planets -- Completing the Copernican revolution -- Chasing transits -- Super-Earth : a new type of planet -- Super-Earths : the hardest rocks in the universe -- The scale of life -- Origins of life : why planets? -- Life as a planetary phenomenon -- Places we could call home -- The passage of time : the universe is young, life is younger -- The future of life.
Subjects: Exobiology.; Synthetic biology.; Extrasolar planets.; Life; Life on other planets.;
© c2012., Basic Books,
Available copies: 1 / Total copies: 1
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Secrets of the universe : how we discovered the cosmos / by Murdin, Paul.;
Includes bibliographical references (p. 327-329) and index.The seven planets : wandering stars -- Stars and constellations : our human link with the ice age -- The milky way : path of the gods, souls and pilgrims -- The shape of the Earth : our planet, a flattened sphere -- The southern constellations : hidden stars revealed by the tilting earth -- The sun : at the centre of the solar system -- Comets : disasters, sun-grazers and the 'lady's comet' -- The satellites of Jupiter : Galileo shatters the crystal spheres -- The phases of Venus : revealing the shape of the Copernican system -- Uranus : William Herschel discovers the first new planet -- Neptune : the planet discovered by the pen -- Asteroids : remnants of the early solar system -- Pluto : a planet deliberately sought, but not a planet and discovered by accident -- The Kuiper belt : the frontier of the solar system -- Meteors and meteorites : the sky is falling! -- Meteor showers : in the middle of the night, stars fell like rain -- The Earth's magnetosphere : our defence against the sun -- Comets : sandbanks or dirty snowballs? -- The Earth's climate, the seasons and the weather : astronomical cycles -- Asteroid impacts on the Earth : the true origin of craters on Earth -- Origin of the moon : neither daughter nor sister of the Earth -- Mercury : the late heavy bombardment -- The greenhouse effect : Venus and the Earth -- Mars : the dying planet -- Water on Mars and Europa : evidence for extraterrestrial life? -- Volcanoes on Io : Linda Morabito makes a chance discovery -- Saturn and the gas giant planets : lords of the rings -- Helium : the cosmic element -- Gravitation : determinism and chaos -- Relativity : the nature of space and time -- Radio waves : a new window on the universe -- X-rays from space : the energetic universe -- Variable stars : discovery of star systems -- Sirius B and white dwarfs : discovery of stellar cinders -- Neutron stars and pulsars : lighthouse stars -- Black holes : a solution looking for a problem -- Distances of the stars : the radiance of a star that was shining years ago -- The discovery of our galaxy : stars in an island universe -- Interstellar nebulae : stars, molecules, dust and gas -- Star clusters : nebulae resolved -- Supernovae : origins of the stardust from which we are made -- Supernova 1987a : the whisper and the vision -- Cepheid variable stars : stars' heartbeats that measure the universe -- Exoplanets : other worlds beyond ours -- The energy of the sun and stars : discovery of nuclear fusion -- The origin of the elements : making star stuff -- Inside the sun : whispers and rings -- The crab nebula : a supernova remnant -- Planetary nebulae : looking into secret places -- The origin of the stars and the planets : the solar nebula and proplyds -- Interstellar dust : curtains of diamonds and graphite -- Hydrogen : the most abundant element in the universe -- Galaxies : ellipticals, spirals and mergers -- Magellanic clouds : our neighbour galaxies -- Quasars : active galaxies -- Supermassive black holes : monsters at the centres of galaxies -- The black hole in our galaxy : a dormant monster -- Gamma-ray bursters : the biggest bangs since the big bang -- The evolving universe : the past, the present and the future -- The cosmic microwave background : the after-glow of the big bang -- Darkness at night : the missing galaxies -- Dark matter : a dark secret to uncover -- Dark energy : on the threshold of a profound discovery -- Gravitational waves : whispers of neutron stars and the big bang -- Life in the universe : are we alone?Discoveries in astronomy challenge our fundamental ideas about the universe. Where the astronomers of antiquity once spoke of fixed stars, we now speak of whirling galaxies and giant supernovae. Where we once thought Earth was the center of the universe, we now see it as a small planet among millions of other planetary systems, any number of which could also hold life. These dramatic shifts in our perspective hinge on thousands of individual discoveries: moments when it became clear to someone that some part of the universe, whether a planet or a supermassive black hole, was not as it once seemed. This book invites us to participate in these moments of revelation and wonder as scientists first experienced them. The author, an astronomer, here provides an ambitious and exciting overview of astronomy, conveying for newcomers and aficionados alike the most important discoveries of this science and introducing the many people who made them. Illustrated with more than 400 color images, the book outlines in seventy episodes what humankind has learned about the cosmos, and what scientists around the world are poised to learn in the coming decades. Arranged by types of discovery, it also provides an overarching narrative throughout that explains how the earliest ideas of the cosmos evolved into the cutting edge astronomy we know today. Along the way, he never forgets that science is a human endeavor, and that every discovery was the result of inspiration, hard work, or luck, usually all three. The first section explores discoveries made before the advent of the telescope, from stars and constellations to the position of our own sun. The second considers discoveries made within our own solar system, from the phases of Venus and the moons of Jupiter to the comets and asteroids at its distant frontier. The next section delves into discoveries of the dynamic universe, like gravitation, relativity, pulsars, and black holes. A fourth examines discoveries made within our own galaxy, from interstellar nebulae and supernovae to Cepheid variable stars and extrasolar planets. Next the author turns to discoveries made within the deepest recesses of the universe, like quasars, supermassive black holes, and gamma ray bursters. In the end, he unveils where astronomy still teeters on the edge of discovery, considering dark matter and alien life.
Subjects: Cosmology; Astronomy;
© 2009., University of Chicago Press,
Available copies: 1 / Total copies: 1
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300 astronomical objects : a visual reference to the universe / by Wilkins, Jamie,1981-; Dunn, Robert,1981-;
Includes bibliographical references and index.A reference guide to over 300 astronomical objects; images accompanied by detailed text with facts and background information.
Subjects: Astronomy; Astronomie;
© 2006., Firefly Books,
Available copies: 1 / Total copies: 1
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The Gale encyclopedia of science / by Nemeh, Katherine H.,editor.; Longe, Jacqueline L.,editor.; Gale (Firm);
Includes bibliographical references and index.Aardvark -- Abacus -- Abrasives -- Abscess -- Absolute zero -- Abyssal plain -- Acceleration -- Accelerators -- Accretion disk -- Accuracy -- Acetic acid -- Acetone -- Acetylcholine -- Acetylsalicylic acid -- Acid rain -- Acids and bases -- Acne -- Acorn worm -- Acoustics -- Actinides -- Action potential -- Activated complex -- Active galactic nuclei -- Acupressure -- Acupuncture -- ADA (adenosine deaminase) deficiency -- Adaptation -- Addiction -- Addison's disease -- Addition -- Adenosine diphosphate -- Adenosine triphosphate -- Adhesive -- Adipocere -- Adrenals -- Aerobic -- Aerodynamics -- Aerosols -- Aerospace engineering -- Aflatoxin -- Africa -- Agent Orange -- Aging and death -- Agouti -- Agribusiness -- Agricultural machines -- Agrochemicals -- Agronomy -- AIDS -- AIDS therapies and vaccines -- Air masses and fronts -- Air pollution -- Aircraft -- Airship -- Albatross -- Albedo -- Albinism -- Alchemy -- Alcohol -- Alcoholism -- Aldehydes -- Alfalfa, genetically engineered -- Algae -- Algal blooms -- Algebra -- Algorithm -- Alkali metals -- Alkaline earth metals -- Alkaloid -- Alkyl group -- Alleles -- Allergy -- Allotrope -- Allotype -- Alloy -- Alluvial systems -- Alpha particle -- Alternate light source analysis -- Alternative and renewable energy -- Alternative energy sources -- Alternative medicine -- Altruism -- Aluminum -- Aluminum hydroxide -- Alzheimer's disease -- Amaranth family (Amaranthaceae) -- Amaryllis family (Amaryllidaceae) -- American Standard Code for Information Interchange -- Ames test -- Amicable numbers -- Amides -- Amino acid -- Ammonia -- Ammonification -- Amnesia -- Amniocentesis -- Amoeba -- Amphetamines -- Amphibians -- Amplifier -- Amputation -- Anabolism -- Anaerobic -- Analemma -- Analgesia -- Analog signals and digital signals -- Analytic geometry -- Anaphylaxis -- Anatomy -- Anatomy, comparative -- Anchovy -- Anemia -- Anesthesia -- Aneurism -- Angelfish -- Angiography -- Angiosperm -- Angle -- Anglerfish -- Animal -- Animal breeding -- Animal cancer tests -- Animal cloning -- Animal testing -- Anion -- Anode -- Anoles -- Antarctica -- Antbirds and gnat-eaters -- Anteaters -- Antelopes and gazelles -- Antenna -- Anthrax -- Anthropocentrism -- Anthropogenic -- Anthropometry -- Antibacterial drugs -- Antibiotic resistance -- Antibiotics -- Antibody and antigen -- Anticoagulants -- Anticonvulsants -- Antidepressant drugs -- Antihelmintics -- Antihistamines -- Anti-inflammatory agents -- Antimatter -- Antimetabolites -- Antioxidants -- Antiparticle -- Antipsychotic drugs -- Antisepsis -- Antiviral drugs -- Antlions -- Ant-pipits -- Ants -- Anxiety -- Apes -- Apgar score -- Aphasia -- Aphids -- Approximation -- Apraxia -- Aquaculture -- Aqueduct -- Aquifer -- Arachnids -- Arapaima -- Arc -- Arc lamp -- Archaebacteria -- Archaeoastronomy -- Archaeogenetics -- Archaeological mapping -- Archaeological sites -- Archaeology -- Archaeometallurgy -- Archaeometry -- Arctic region -- Arithmetic -- Armadillos -- Arrow worms -- Arrowgrass -- Arrowroot -- Arsenic -- Arteries -- Arteriosclerosis -- Arthritis -- Arthropods -- Arthroscopic surgery -- Artifacts and artifact classification -- Artificial fibers -- Artificial heart and heart valve -- Artificial intelligence -- Artificial vision -- Arum family (Araceae) -- Asbestos -- Asexual reproduction -- Asia -- Assembly line -- Asses -- Associative property -- Asteraceae -- Asteroid 2002 AA29 -- Asthenosphere -- Asthma -- Astrobiology -- Astroblemes -- Astrolabe -- Astrometry -- Astronomical unit -- Astronomy -- Astrophysics -- Atmosphere, composition and structure -- Atmosphere observation -- Atmospheric chemistry -- Atmospheric circulation -- Atmospheric feedback factors -- Atmospheric optical phenomena -- Atmospheric pressure -- Atmospheric temperature -- Atomic clock -- Atomic models -- Atomic number -- Atomic spectroscopy -- Atomic theory -- Atomic weight -- Atoms -- Attention-deficit/hyperactivity disorder (ADHD) -- Augmented reality -- Auks -- Australia -- Autism -- Autoimmune disorders -- Automatic pilot -- Automation -- Automobiles -- Autopsy -- Autotroph -- Avogadro's number -- Aye-ayes -- Babblers -- Baboons -- Bacteria -- Bacterial blights -- Bacteriophage -- Badgers -- Ball bearing -- Ballistic missiles -- Ballistics -- Balloon -- Banana -- Bandicoots -- Bar code -- Barberry -- Barbets -- Barbiturates -- Bariatrics -- Barium -- Barium sulfate -- Bark -- Barley -- Barnacles -- Barometer -- Barracuda -- Barrier islands -- Basin -- Bass -- Basswood -- Bathymetric maps -- Bathysphere -- Bats -- Battery -- Beach nourishment -- Beardworms -- Bears -- Beavers -- Bedrock -- Beech family (Fagaceae) -- Bee-eaters -- Bees -- Beetles -- Beets -- Begonia -- Behavior -- Bennettites -- Benzene -- Benzoic acid -- Bernoulli's principle -- Beta-blockers -- Big bang theory -- Binary star -- Bindle paper -- Binocular -- Binomial theorem -- Bioaccumulation -- Bioassay -- Biochemical oxygen demand -- Biochemistry -- Biodegradable substances -- Biodegradation -- Biodetectors -- Biodiversity -- Bioenergy -- Biofeedback -- Biofilms -- Bio-flips -- Biofuels -- Bioinformatics and computational biology -- Biological and biomimetic systems -- Biological and chemical weapons -- Biological community -- Biological rhythms -- Biological warfare -- Biology -- Bioluminescence -- Biomagnification -- Biomass -- Biome -- Biomedical engineering -- Biometrics -- Biophysics -- Bioremediation -- Biosphere -- Biosphere Project -- Biotechnology -- Bioterrorism -- Bipolar disorder -- Birch family (Betulaceae) -- Birds -- Birds of paradise -- Birds of prey -- Birth -- Birth defects -- Bison -- Bitterns -- Bivalves -- BL Lacertae object -- Black hole -- Black hole collisions -- Blackbirds -- Blackbody radiation -- Bleach -- Blennies -- Blindness and visual impairments -- Blindsnakes -- Blockchain technology -- Blood -- Blood gas analysis -- Blood supply -- Bloodstain evidence -- Blotting analysis -- Bluebirds -- Boarfish -- Boas -- Bohr model -- Boiling point -- Bond energy -- Bony fish -- Boobies and gannets -- Boolean algebra -- Boric acid -- Botany -- Botulism -- Bowen's reaction series -- Bowerbirds -- Bowfin -- Boxfish -- Brachiopods -- Brackish -- Brain -- Breathalyzer® -- Brewing -- Brick -- Bridges -- Bristletails -- Brittle star -- Bromeliad family (Bromeliaceae) -- Bronchitis -- Brown dwarf -- Brownian motion -- Brucellosis -- Bryophyte -- Bubonic plague -- Buckminsterfullerene -- Buckthorn --Buckwheat -- Buds and budding -- Buffer -- Building design/architecture -- Bulbuls -- Bunsen burner -- Buoyancy, principle of -- Buret -- Burn -- Bustards -- Buttercup -- Butterflies -- Butterfly fish -- Butyl group -- Butylated hydroxyanisole -- Butylated hydroxytoluene -- Buzzards -- Cactus -- CAD/CAM/CIM -- Caddisflies -- Caecilians -- Caffeine -- Caisson -- Calcium -- Calcium carbonate -- Calcium oxide -- Calcium propionate -- Calcium sulfate -- Calculator -- Calculus -- Calendars -- Calibration -- Caliper -- Calorie -- Calorimetry -- Camels -- Canal -- Cancel -- Cancer -- Canines -- Cannabidiol (CBD) -- Cantilever -- Capacitance -- Capacitor -- Capillaries -- Capillary action -- Caprimulgids -- Captive breeding and reintroduction -- Capuchins -- Capybaras -- Carbohydrate -- Carbon -- Carbon cycle -- Carbon dioxide -- Carbon footprint -- Carbon monoxide -- Carbon sink -- Carbon tetrachloride -- Carbonyl group -- Carboxyl group -- Carboxylic acids -- Carcinogen -- Cardiac cycle -- Cardinal number -- Cardinals and grosbeaks -- Caribou -- Carnivore -- Carnivorous plants -- Carp -- Carpal tunnel syndrome -- Carrier (genetics) -- Carrot family (Apiaceae) -- Carrying capacity -- Cartesian coordinate plane -- Cartilaginous fish -- Cartography -- Cashew family (Anacardiaceae) -- Cassini spacecraft -- Catabolism -- Catalyst and catalysis -- Catastrophism -- Catfish -- Catheters -- Cathode -- Cathode ray tube -- Cation -- Cats -- Cattails -- Cattle family (Bovidae) -- Cauterization -- Cave -- Cave fish -- Celestial coordinates -- Celestial mechanics -- Celestial sphere: The apparent motions of the Sun, Moon, planets, and stars -- Cell -- Cell death -- Cell division -- Cell, electrochemical -- Cell membrane transport -- Cell staining -- Cellular respiration -- Cellular telephone -- Cellulose -- Centipedes -- Centrifuge -- Ceramics -- Cerenkov effect -- Cetaceans -- Chachalacas -- Chameleons -- Chaos -- Charge-coupled device -- Chelate -- Chemical bond -- Chemical evolution -- Chemical oxygen demand -- Chemical reactions -- Chemical warfare -- Chemistry -- Chemoreception -- Chestnut -- Chickenpox -- Childhood diseases -- Chimaeras -- Chimpanzees -- Chinchilla -- Chipmunks -- Chi-square test -- Chitons -- Chlordane -- Chlorinated hydrocarbons -- Chlorination -- Chlorine -- Chlorofluorocarbons (CFCs) -- Chloroform -- Chlorophyll -- Chloroplast -- Cholera -- Cholesterol -- Chordates -- Chorionic villus sampling (CVS) -- Chromatin -- Chromatography -- Chromosomal abnormalities -- Chromosome -- Chromosome mapping -- Cicadas -- Cigarette smoke -- Circadian cycle and rhythm -- Circle -- Circulatory system -- Circumscribed and inscribed -- Cirrhosis -- Citric acid -- Citrus trees -- Civets -- Civil engineering -- Cladistics -- Clear-cutting -- Climate change -- Climate change impacts in Africa -- Climate change impacts in Asia -- Climate change impacts in Australia and New Zealand -- Climate change impacts in Europe -- Climate change impacts in North America -- Climate change impacts in small island nations -- Climate change impacts in South America -- Climax (ecological) -- Clingfish -- Clipper chip -- Clone and cloning -- Closed curves -- Closure property -- Cloud computing -- Clouds -- Club mosses -- Coal -- Coast and beach -- Coati -- Coca -- Cocaine -- Cockatoo -- Cockroaches -- Codeine -- Codfish -- Codon -- Coefficient -- Coelacanth -- Coffee plant -- Cogeneration -- Cognition -- Cold, common -- Collagen -- Colloid -- Colobus monkey -- Color -- Color blindness -- Colugo -- Coma -- Combinatorics -- Combustion -- Comet Hale-Bopp -- Comets -- Commensalism -- Communications technology -- Community ecology -- Commutative property -- Compact disc -- Competition -- Complementary DNA -- Complex -- Complex numbers -- Composite materials -- Composting -- Compound, chemical -- Compton effect -- Compulsion -- Computer, analog -- Computer, digital -- Computer hardware security -- Computer keystroke recorder -- Computer languages -- Computer memory, physical and virtual memory -- Computer modeling -- Computer software -- Computer software security -- Computer virus -- Computerized axial tomography -- Concentration -- Concrete -- Conditioning -- Condors -- Congenital -- Congruence (triangle) -- Conic sections -- Conifer -- Connective tissue -- Conservation -- Conservation laws -- Constellation -- Constructions -- Contaminated soil -- Contamination -- Continent -- Continental drift -- Continental margin -- Continental shelf -- Continuity -- Contour plowing -- Contraception -- Convection -- Coordination compound -- Copepods -- Copper -- Coral and coral reef -- Coral bleaching -- Coriolis effect -- Cork -- Corm -- Cormorants -- Corn (maize) -- Coronal ejections and magnetic storms -- Correlation (geology) -- Correlation (mathematics) -- Corrosion -- Cosmic background radiation -- Cosmic ray -- Cosmology -- Cotingas -- Cotton -- Coulomb -- Countable -- Coursers and pratincoles -- Courtship -- COVID-19 global pandemic -- Coypu -- Crab -- Crane -- Cranes -- Crayfish -- Crestfish -- Creutzfeldt-Jakob disease -- Crickets -- Crime scene investigation -- Crime scene reconstruction -- Critical habitat -- Crocodiles -- Crop rotation -- Crops -- Cross multiply -- Cross-section -- Crows and jays -- Crustacea -- Cryobiology -- Cryogenics -- Cryosphere -- Cryptography, encryption, and number theory -- Crystal -- Cubic equations -- Cuckoos -- Cultural geography -- Curare -- Curlews -- Currents -- Curve -- Cushing syndrome -- Cuttlefish -- Cybernetics -- Cybersecurity -- Cycads -- Cyclamate -- Cyclone and anticyclone -- Cyclosporine -- Cyclotron -- Cystic fibrosis -- Cytochrome -- Cytology -- Dams -- Damselflies -- Dark energy -- Dark matter -- Data mining -- Dating techniques -- DDT -- Deafness and inherited hearing loss -- Decimal fraction -- Decomposition -- Decontamination methods -- Decryption -- Deer -- Deer mouse -- Deforestation -- Degree -- Dehydroepiandrosterone (DHEA) -- Delta -- Dementia -- Dendrochronology -- Dengue fever -- Denitrification -- Density -- Dentistry -- Deoxyribonucleic acid (DNA) -- Deposit -- Depression -- Depth perception -- Derivative -- Desalination -- Desert -- Desertification -- Determinants -- Deuterium -- Developmental processes -- Dew point -- Diabetes mellitus -- Diagnosis -- Dialysis -- Diamond -- Diatoms -- Dielectric materials -- Diesel engine -- Diethylstilbestrol (DES) -- Diffraction -- Diffraction grating -- Diffusion -- Digestive system -- Digital recording -- Digitalis -- Dik-diks -- Dinosaur -- Diode -- Dioxin -- Diphtheria -- Dipole -- Direct variation -- Disease -- Dissociation -- Distance -- Distillation -- Distributive property -- Disturbance, ecological -- Diurnal cycles -- Division -- DNA databanks -- DNA fingerprinting -- DNA recognition -- instruments -- DNA replication -- DNA synthesis -- DNA technology -- DNA vaccine -- Dobsonflies -- Dogwood tree -- Domain -- Donkeys -- Dopamine -- Doppler effect -- Dories -- Dormouse -- Dosimetry -- Double helix -- Double-blind study -- Down syndrome -- Dragonflies -- Drift net -- Drones and unmanned aircraft -- Drongos -- Drosophila melanogaster -- Drought -- Ducks -- Duckweed -- Duikers -- Dune -- Duplication of the cube -- Dust devil -- DVD -- Dwarf antelopes -- Dyes and pigments --Dysentery -- Dyslexia -- Dysplasia -- Dystrophinopathies -- e (number) -- Eagles -- Ear -- Earth -- Earth Challenge Prize -- Earth science -- Earthquake -- Earthquake and tsunami in Japan (2011) -- Earthquake in Mexico (2017) -- Earthquake in Nepal -- Earth's geologic history -- Earth's interior -- Earth's magnetic field -- Earth's rotation -- Earwigs -- Eating disorders -- Ebola virus -- Ebony -- Echiuroid worms -- Echolocation -- Eclipse -- Ecological economics -- Ecological integrity -- Ecological monitoring -- Ecological productivity -- Ecological pyramids -- Ecology -- Economic geography -- Ecosystem -- Ecotone -- Ecotourism -- Edema -- Eel grass -- Einstein-Podolsky-Rosen paradox -- El Niǫ and La Nią -- Eland -- Elapid snakes -- Elasticity -- Electric arc -- Electric charge -- Electric circuit -- Electric conductor -- Electric current -- Electric motors -- Electric vehicles -- Electrical conductivity -- Electrical engineering -- Electrical power supply -- Electrical resistance -- Electricity -- Electrocardiogram (ECG) -- Electroencephalogram (EEG) -- Electrolysis -- Electrolyte -- Electromagnetic field -- Electromagnetic induction -- Electromagnetic pulse -- Electromagnetic spectrum -- Electromagnetism -- Electromotive force -- Electron -- Electron cloud -- Electronic control device (ECD) -- Electronics -- Electronics waste -- Electrophoresis -- Electrostatic devices -- Element, chemical -- Element, families of -- Element, transuranium -- Elements, formation of -- Elephant -- Elephant shrews -- Elephant snout fish -- Elephantiasis -- Elevator -- Ellipse -- Elm -- Embiids -- Embolism -- Embryo and embryonic development -- Embryo transfer -- Embryology -- Emission -- Emphysema -- Emulsion -- Encephalitis -- Endangered species -- Endemic -- Endocrine system -- Endoprocta -- Endoscopy -- Endothermic -- Energy -- Energy budgets -- Energy efficiency -- Energy transfer -- Engineering -- Engraving and etching -- Enhanced greenhouse effect -- Enterobacteria -- Entropy -- Environmental ethics -- Environmental impact statement -- Enzymatic engineering -- Enzyme -- Epidemic -- Epidemiology -- Epigenetics -- Epilepsy -- Episomes -- Epstein-Barr virus -- Equation, chemical -- Equilibrium, chemical -- Equinox -- Erosion -- Error -- Escherichia coli -- Ester -- Esterification -- Ethanol -- Ether -- Ethnoarchaeology -- Ethnobotany -- Ethyl group -- Ethylene glycol -- Ethylenediaminetetra-acetic acid -- Etiology -- Eubacteria -- Eugenics -- Eukaryotae -- Europe -- Eutrophication -- Evaporation -- Evapotranspiration -- Even and odd -- Event horizon -- Evolution -- Evolution, convergent -- Evolution, divergent -- Evolution, evidence of -- Evolution, parallel -- Evolutionary change, rate of -- Evolutionary mechanisms -- Excavation methods -- Exclusion principle, Pauli -- Excretory system -- Exercise -- Exocrine glands -- Explosives -- Exponent -- Extinction -- Extrasolar planets -- Extreme weather -- Eye -- Facial recognition -- Factor -- Factorial -- Falcons -- Faraday effect -- Fat -- Fat substitutes -- Fatty acids -- Fault -- Fauna -- Fax machine -- Feather stars -- Fermentation -- Ferns -- Ferrets -- Fertilization -- Fertilizers -- Fetal alcohol syndrome -- Feynman diagrams -- Fiber optics -- Fibonacci sequence -- Field -- Figurative numbers -- Filtration -- Finches -- Firs -- Fish -- 5G technology -- Flagella -- Flame analysis -- Flamingos -- Flatfish -- Flatworms -- Flavonoids -- Flax -- Fleas -- Flies -- Flightless birds -- Flooding -- Flora -- Flower -- Fluid dynamics -- Fluid mechanics -- Fluorescence -- Fluorescence in situ hybridization (FISH) -- Fluorescent light -- Fluoridation -- Flying fish -- Focused ion beam (FIB) -- Fog -- Fold -- Food irradiation -- Food poisoning -- Food preservation -- Food pyramid -- Food web/chain -- Foot and mouth disease -- Force -- Forensic genealogy -- Forensic science -- Forestry -- Forests -- Formula, chemical -- Formula, structural -- Fossa -- Fossil and fossilization -- Fossil fuels -- Fracking -- Fractal -- Fraction, common -- Fraunhofer lines -- Freeway -- Frequency -- Fresh water -- Friction -- Frigatebirds -- Frogs -- Frog's-bit family -- Frostbite -- Fruits -- Fuel cells -- Fukushima nuclear accident -- Function -- Fundamental theorems -- Fungi -- Fungicide -- Gaia hypothesis -- Galaxy -- Galileo project -- Game theory -- Gamete -- Gametogenesis -- Gamma-ray astronomy -- Gamma-ray burst -- Gangrene -- Garpike -- Gases, liquefaction of -- Gases, properties of -- Gazelles -- Gears -- Geckos -- Geese -- Gelatin -- Gene -- Gene chips and microarrays -- Gene editing -- Gene mutation -- Gene splicing -- Gene therapy -- Generator -- Genetic disorders -- Genetic engineering -- Genetic identification of microorganisms -- Genetic testing -- Genetically modified organisms -- Genetics -- Genets -- Genome -- Genomics (comparative) -- Genotype and phenotype -- Geocentric theory -- Geochemical analysis -- Geochemistry -- Geode -- Geodesic -- Geodesic dome -- Geoengineering -- Geographic and magnetic poles -- Geologic map -- Geologic time -- Geology -- Geomagnetic storms -- Geometry -- Geomicrobiology -- Geophysics -- Geospatial imagery -- Geothermal energy -- Geotropism -- Gerbils -- Germ cells and the germ cell line -- Germ theory -- Germination -- Gerontology -- Gesnerias -- Geyser -- Gibbons and siamangs -- Gila monster -- Ginger -- Ginkgo -- Ginseng -- Giraffes and okapi -- GIS -- Glaciers -- Glands -- Glass -- Global climate -- Global dimming -- Global Positioning System -- Global warming -- Glycerol -- Glycol -- Glycolysis -- Goats -- Goatsuckers-- Gobies -- Goldenseal -- Gophers -- Gorillas -- Gourd family (Cucurbitaceae) -- Graft -- Grand unified theory -- Grapes -- Graphs and graphing -- Grasses -- Grasshoppers -- Grasslands -- Gravitational lens -- Gravitational waves and astronomy -- Gravity and gravitation -- Great Barrier Reef -- Greatest common factor -- Grebes -- Greenhouse effect -- Groundhog -- Groundwater -- Group -- Grouse -- Growth and decay -- Growth hormones -- Guenons -- Guillain-Barre syndrome -- Guinea pigs and cavies -- Guineafowl -- Gulls -- Guppy -- Gutenberg discontinuity -- Gutta percha -- Gymnosperm -- Gynecology -- Gyroscope -- H1N1 pandemic swine flu -- H5N1 avian influenza -- H7N9 avian influenza -- Habitat -- Hagfish -- Half-life -- Halide, organic -- Hall effect -- Halley's comet -- Hallucinogens -- Halogenated hydrocarbons -- Halogens -- Halosaurs -- Hamsters -- Hand tools -- Hantavirus infections -- Hard water -- Harmonics -- Hartebeests -- Hawks -- Hazardous wastes -- Hazel -- Health geography -- Hearing -- Heart -- Heart disease -- Heart, embryonic development and changes at birth -- Heart, rhythm control and impulse conduction -- Heart-lung machine -- Heat -- Heat capacity -- Heat index -- Heat transfer -- Heath family (Ericaceae) -- Hedgehogs -- Heisenberg uncertainty principle -- Heliocentric theory -- Heliosphere -- Hematology -- Hemoglobin -- Hemophilia -- Hemorrhagic fevers and diseases -- Hemp -- Henna -- Hepatitis -- Hepatitis A virus (HAV) -- Hepatitis B virus (HBV) -- Hepatitis C virus (HCV) -- Hepatitis D virus (HDV) -- Hepatitis E virus (HEV) -- Herb -- Herbal medicine -- Herbicides -- Herbivore -- Herd immunity -- Hermaphrodite --Hernia -- Herons -- Herpetology -- Herrings -- Hertzsprung-Russell diagram -- Heterotroph -- Hibernation -- Higgs boson -- Himalayas, geology of -- Hippopotamus -- Histamine -- Historical geography -- Historical geology -- Hoatzin -- Hodgkin's disease -- Holly family (Aquifoliaceae) -- Hologram and holography -- Holographic principle -- Homeostasis -- Honeycreepers -- Honeyeaters -- Hoopoe -- Horizon -- Hormones -- Hornbills -- Horse chestnut -- Horsehair worms -- Horses -- Horseshoe crabs -- Horsetails -- Horticulture -- Hot spot -- Hovercraft -- Hubble constant -- Hubble Space Telescope -- Human artificial chromosomes -- Human chorionic gonadotropin -- Human cloning -- Human ecology -- Human evolution -- Human Genome Project -- Human geography -- Human population -- Humidity -- Hummingbirds -- Humus -- Huntington disease -- Hurricane Harvey -- Hurricane Irma -- Hurricane Sandy -- Hybrid -- Hybrid transportation -- Hydra -- Hydrocarbon -- Hydrocephalus -- Hydrochlorofluorocarbons -- Hydroelectric power -- Hydrofoil -- Hydrogen -- Hydrogen chloride -- Hydrogen peroxide -- Hydrogenation -- Hydrology -- Hydrolysis -- Hydroponics -- Hydrosphere -- Hydrothermal vents -- Hydrozoa -- Hyena -- Hyperbarics -- Hyperbola -- Hypertension -- Hypothermia -- Hypoxia -- Hyraxes -- Ibises -- Ice -- Ice age refuges -- Ice ages -- Ice and snow cover -- Ice cores -- Icebergs -- Iceman -- Identity element -- Identity property -- Igneous rocks -- Iguanas -- Illegal drugs -- Imaginary number -- Immune system -- Immunology -- Impact crater -- Imprinting -- In vitro and in vivo -- In vitro fertilization (IVF) -- Incandescent light -- Incineration -- Indicator, acid-base -- Indicator species -- Individual -- Indoor air quality -- Industrial minerals -- Industrial Revolution -- Inequality -- Inertial guidance -- Infection -- Infectious diseases -- Infertility -- Infinity -- Inflammation -- Inflection point -- Influenza -- Infrared astronomy -- Infrared detection devices -- Inherited disorders -- Insecticides -- Insectivore -- Insects -- Insolation -- Insomnia -- Instinct -- Insulin -- Integers -- Integral -- Integrated circuit -- Integrated pest management -- Integumentary system -- Interference -- Interferometry -- Interferons -- Internal combustion engine -- International Space Station -- International Ultraviolet Explorer -- Internet and the World Wide Web -- Internet file transfer and tracking -- Internet search engine -- Interstellar matter -- Interval -- Introduced species -- Invariant -- Invasive species -- Invertebrates -- Ion and ionization -- Ion exchange -- Ionizing radiation -- Iris family -- Iron -- Irrational number -- Irrigation -- Island -- Isoantibodies -- Isobars -- Isomer -- Isostasy -- Isotope -- Isotopic analysis -- Isthmus -- Iteration -- Jacanas -- Jacks -- Jatropha -- Jaundice -- Jellyfish -- Jerboas -- Jet engine -- Jet stream -- Juniper -- Jupiter -- Kangaroo rats -- Kangaroos and wallabies -- Karst topography -- Karyotype and karyotype analysis -- Kelp forests -- Kepler's laws -- Keystone species -- Killifish -- Kingdom -- Kingfishers -- Kinglets -- Koalas -- Koch's postulates -- Kola -- Korsakoff's syndrome -- Krebs cycle -- K-T event (Cretaceous-Tertiary event) -- Kuiper belt objects -- Kuru -- Lacewings -- Lactic acid -- Lagomorphs -- Lake -- Lamarckism -- Lampreys and hagfishes -- Land and sea breezes -- Land use -- Landfill -- Landform -- Langurs and leaf-monkeys -- Lantern fish -- Lanthanides -- Large Hadron Collider -- Larks -- Laryngitis -- Laser -- Laser surgery -- Latitude and longitude -- Laurel family (Lauraceae) -- Laws of motion -- LCD -- Leaching -- Lead -- Leaf -- Leafhoppers -- Learning -- Least common denominator -- Lecithin -- LED -- Legionnaire disease -- Legumes -- Lemmings -- Lemurs -- Lens -- Leprosy -- Leukemia -- Lewis structure -- Lice -- Lichens -- Life history -- Ligand -- Light -- Light pollution -- Lightning -- Light-year -- Lilac -- Lily family (Liliaceae) -- Limit -- Limiting factor -- Limpets -- Line, equations of -- Linear algebra -- Lipid -- Liquid crystals -- Lithium -- Lithography -- Lithosphere -- Lithotripsy -- Liverwort -- Livestock -- Lobsters -- Lock -- Lock and key -- Locus -- Logarithms -- Loons -- Loop quantum gravity -- LORAN -- Lorises -- Luminescence -- Lungfish -- Lycophytes -- Lyme disease -- Lymphatic system -- Lyrebirds -- Macaques -- Mach number -- Machine tools -- Machine vision -- Machines, simple -- Mackerel -- Magic square -- Magma -- Magnesium -- Magnesium sulfate -- Magnetic levitation -- Magnetic recording/audiocassette -- Magnetic resonance imaging (MRI) -- Magnetism -- Magnetosphere -- Magnolia -- Mahogany -- Maidenhair fern -- Malaria -- Malnutrition -- Mammals -- Manakins -- Mangrove tree -- Mania -- Map -- Maples -- Marfan syndrome -- Marijuana -- Marine toxins -- Marlins -- Marmosets and tamarins -- Marmots -- Mars -- Mars exploration rovers -- Mars Pathfinder -- Marsupial cats -- Marsupial rats and mice -- Marsupials -- Marten, sable, and fisher -- Maser -- Mass -- Mass extinction -- Mass number -- Mass production -- Mass spectrometry -- Mass transportation -- Mass wasting -- Materials science -- Mathematics -- Matrix -- Matter -- Maunder minimum -- Maxima and minima -- Mayflies -- Mean -- Mechanical engineering -- Median -- Medical genetics -- Meiosis -- Membrane -- Memory -- Mendelian genetics -- Meningitis -- Menopause -- Menstrual cycle -- Mercurous chloride -- Mercury (element) -- Mercury (planet) -- MERS (Middle East Respiratory syndrome) -- Mesoscopic systems -- Mesozoa -- Metabolic disorders -- Metabolism -- Metal -- Metal detectors -- Metal fatigue -- Metal production -- Metallurgy -- Metamorphic grade -- Metamorphic rock -- Metamorphism -- Metamorphosis -- Meteorology -- Meteors and meteorites -- Methamphetamine -- Methyl group -- Metric system -- Mice -- Michelson-Morley experiment -- Microbial archaeology -- Microbial genetics -- Microbiome -- Microchip -- Microclimate -- Microorganisms -- Microplastics -- Microscope -- Microscopy -- Microtechnology -- Microwave communication -- Migraine headache -- Migration -- Mildew -- Milkweeds -- Milky Way -- Miller-Urey experiment -- Millipedes -- Mimicry -- Mineralogy -- Minerals -- Mining -- Mink -- Minnows -- Minor planets -- Mint family -- Mir Space Station -- Mirrors -- Miscibility -- Mistletoe -- Mites -- Mitochondrial DNA analysis -- Mitosis -- Mixture, chemical -- Mobius strip -- Mockingbirds and thrashers -- Mode -- Model organisms -- Modular arithmetic -- Mohs' scale -- Mold -- Mole -- Molecular biology -- Molecular formula -- Molecular geometry -- Molecular weight -- Molecule -- Mole-rats -- Moles -- Mollusks -- Momentum -- Monarch flycatchers -- Mongooses -- Monitor lizards -- Monkeys -- Monochromatic light -- Monoculture -- Monomer -- Monosodium glutamate (MSG) -- Monotremes -- Monsoon -- Montreal Biodome -- MOOC (Massive open online course) --Moon -- Mooneyes -- Moose -- Morphine -- Mosquitoes -- Moss -- Moss animals -- Mossbauer effect -- Moths -- Motion -- Motion pictures -- Moundbuilders -- Mounds, earthen -- Mountains -- Mousebirds -- Mulberry family (Moraceae) -- Multiple personality disorder -- Multiplication -- Murchison meteorite -- Muscle relaxants -- Muscular system -- Mushrooms -- Muskoxen -- Muskrat -- Mustard family (Brassicaceae) -- Mustard gas -- Mutagen -- Mutagenesis -- Mutation -- Mutualism -- Mycorrhiza -- Mycotoxin -- Mynah birds -- Myrtle family (Myrtaceae) -- Nanotechnology -- Narcotic -- Natural fibers -- Natural gas -- Natural numbers -- Nautical archaeology -- N-body problem -- Near-Earth Object Hazard Index -- Nectar -- Negative -- Neptune -- Nerve gas -- Nerve growth factor -- Nerve impulses and conduction of impulses -- Nervous system -- Neuromuscular diseases -- Neuron -- Neuroscience -- Neurosurgery -- Neurotransmitter -- Neutralization -- Neutrino -- Neutron -- Neutron activation analysis -- Neutron star -- New World monkeys -- Newton's laws of motion -- Newts -- Niche -- Nicotine -- Night vision enhancement devices -- Nightshade -- Nitric acid -- Nitrification -- Nitrogen -- Nitrogen cycle -- Nitrogen fixation -- Nobel Prize -- Noise pollution -- Non-Euclidean geometry -- Nonmetal -- Nonpoint source -- North America -- Nova -- Novocain -- Nuclear engineering -- Nuclear fission -- Nuclear fusion -- Nuclear magnetic resonance -- Nuclear medicine -- Nuclear power -- Nuclear reactor -- Nuclear weapons -- Nuclear winter -- Nucleic acid -- Nucleon -- Nucleus, cellular -- Numbat -- Number theory -- Numeration systems -- Nut -- Nuthatches -- Nutmeg -- Nutrient deficiency diseases -- Nutrients -- Nutrition -- Nux vomica tree -- Oaks -- Obesity -- Obsession -- Ocean acidification -- Ocean basin -- Ocean currents -- Ocean sunfish -- Ocean zones -- Oceanography -- Oceans -- Ockham's razor -- Octet rule -- Octopus -- Odds -- Odontology -- Ohm's law -- Oil and gas pipelines -- Oil spills -- Oil well drilling -- Old-growth forests -- Olive family (Oleaceae) -- Omnivore -- One-to-one correspondence -- Opah -- Open-source software -- Opossums -- Opportunistic species -- Optical data storage -- Optics -- Orangutans -- Orbit -- Orchid family (Orchidaeceae) -- Ordinal number -- Ore -- Organ -- Organelles and subcellular genetics -- Organic farming -- Organism -- Organogenesis -- Organs and organ systems -- Origin of life -- Origins of the universe -- Orioles -- Ornithology -- Orthopedics -- Oryx -- Oscillating reactions -- Oscillations -- Oscilloscope -- Osmosis -- Osmosis (cellular) -- Ossification -- Osteoporosis -- Otter shrews -- Otters -- Outcrop -- Ovarian cycle and hormonal regulation -- Ovenbirds -- Oviparous -- Ovoviviparous -- Owls -- Oxalic acid -- Oxidation state -- Oxidation-reduction reaction -- Oxygen -- Oystercatchers -- Ozone -- Ozone layer depletion -- Pacemaker -- Pain -- Paleobotany -- Paleoclimate -- Paleoecology -- Paleomagnetism -- Paleontology -- Paleopathology -- Palindrome -- Palms -- Palynology -- Pandas -- Pangolins -- Papaya -- Paper -- Parabola -- Parallax -- Parallel -- Parallelogram -- Parasites -- Parasitology -- Parity -- Parkinson disease -- Parrots -- Parthenogenesis -- Particle detectors -- Partridges -- Pascal's triangle -- Passion flower -- Paternity and parentage testing -- Pathogens -- Pathology -- PCR -- Peafowl -- Peanut worms -- Peccaries -- Pedigree analysis -- Pelicans -- Penguins -- Peninsula -- Pentyl group -- Peony -- Pepper -- Peptide linkage -- Percent -- Perception -- Perch -- Peregrine falcon -- Perfect numbers -- Performance-enhancing drugs -- Periodic functions -- Periodic table -- Permafrost -- Perpendicular -- Personal digital assistant -- Personal music players -- Pesticides -- Pests -- Petrels and shearwaters -- Petroglyphs and pictographs -- Petroleum -- pH -- Phalangers -- Pharmacogenetics -- Pharmacogenomics -- Pheasants -- Phenyl group -- Phenylketonuria -- Pheromones -- Phlox -- Phobias -- Phonograph -- Phoronids -- Phosphoric acid -- Phosphorus -- Phosphorus cycle -- Phosphorus removal -- Photic zone -- Photochemistry -- Photocopying -- Photoelectric cell -- Photoelectric effect -- Photogrammetry -- Photographic resolution -- Photography -- Photography, electronic -- Photon -- Photosynthesis -- Phototropism -- Photovoltaic cell -- Phylogeny -- Physical therapy -- Physics -- Physiology -- Physiology, comparative -- Phytoplankton -- Pi -- Pigeons and doves -- Pigs -- Pike -- Piltdown hoax -- Pinecone fish -- Pines -- Pipefish -- Placebo -- Planck's constant -- Plane -- Plane family -- Planet -- Planet X -- Planetary atmospheres -- Planetary geology -- Planetary nebulae -- Planetary ring systems -- Plankton -- Plant -- Plant breeding -- Plant diseases -- Plant pigment -- Plasma -- Plastic surgery -- Plastics -- Plate tectonics -- Platonic solids -- Platypus -- Plovers -- Pluto -- Pneumonia -- Podcast -- Podiatry -- Point -- Point source -- Poisons and toxins -- Polar coordinates -- Polar ice caps -- Poliomyelitis -- Pollen analysis -- Pollination -- Pollution -- Pollution control -- Polybrominated biphenyls (PBBs) -- Polychlorinated biphenyls (PCBs) -- Polycyclic aromatic hydrocarbons -- Polygons -- Polyhedron -- Polymer -- Polynomials -- Poppies -- Population geography -- Population growth and control (human) -- Porcupines -- Positive number -- Positron emission tomography (PET) -- Postulate -- Potassium aluminum sulfate -- Potassium hydrogen tartrate -- Potassium iodide -- Potassium nitrate -- Potato -- Pottery analysis -- Prairie -- Prairie chicken -- Prairie dog -- Prairie falcon -- Praying mantis -- Precession of the equinoxes -- Precious metals -- Precipitation -- Predator -- Prenatal surgery -- Prescribed burn -- Pressure -- Prey -- Primates -- Prime numbers -- Primroses -- Printing -- Prions -- Prism -- Probability -- Probability theory -- Proboscis monkey -- Projective geometry -- Prokaryote -- Pronghorn -- Proof -- Propyl group -- Prosimians -- Prosthetics -- Proteas -- Protected area -- Proteins -- Proteomics -- Protista -- Proton -- Protozoa -- Psychiatry -- Psychoanalysis -- Psychology -- Psychometry -- Psychosis -- Psychosurgery -- Puberty -- Puffbirds -- Puffer fish -- Pulsar -- Punctuated equilibrium -- Pyramid -- Pythagorean theorem -- Pythons -- Quadrilateral -- Quail Qualitative analysis -- Quantitative analysis -- Quantum computing -- Quantum electrodynamics (QED) -- Quantum entanglement -- Quantum mechanics -- Quantum number -- Quarks -- Quasar -- Quasicrystals -- Quetzal -- Quinine -- Rabies -- Raccoons -- Radar -- Radial keratotomy -- Radiation -- Radiation detectors -- Radiation exposure -- Radical (atomic) -- Radical (math) -- Radio -- Radio astronomy -- Radio waves -- Radioactive dating -- Radioactive decay -- Radioactive fallout -- Radioactive pollution -- Radioactive tracers -- Radioactive waste -- Radioisotopes in medicine -- Radiology -- Radon --Rails -- Rainbows -- Rainforest -- Random -- Rangeland -- Raptors -- Rare gases -- Rare genotype advantage -- Rate -- Ratio -- Rational number -- Rationalization -- Rats -- Rayleigh scattering -- Rays -- Real numbers -- Reciprocal -- Recombinant DNA -- Rectangle -- Recycling -- Red giant star -- Red tide -- Redshift -- Reflections -- Reflex -- Refrigerated trucks and railway cars -- Rehabilitation -- Reinforcement, positive and negative -- Relation -- Relativity, general -- Relativity, special -- Remote sensing -- Reproductive system -- Reproductive toxicant -- Reptiles -- Resins -- Resonance -- Resources, natural -- Respiration -- Respirator -- Respiratory diseases -- Respiratory system -- Restoration ecology -- Retrograde motion -- Retrovirus -- Reye's syndrome -- Rh factor -- Rhesus monkeys -- Rheumatic fever -- Rhinoceros -- Rhizome -- Rhubarb -- Ribbon worms -- Ribonuclease -- Ribonucleic acid (RNA) -- Ribosomes -- Rice -- Ricin -- Rickettsia -- Rigor mortis -- Rinderpest -- Rivers -- RNA function -- RNA splicing -- Robins -- Robotic vehicles -- Robotics -- Rockets and missiles -- Rocks -- Rodents -- Rollers -- Root system -- Rose family (Rosaceae) -- Rotation -- Roundworms -- Rumination -- Rushes -- Rusts and smuts -- Saiga antelope -- Salamanders -- Saliva -- Salmon -- Salmonella -- Salt -- Salt marshes -- Saltwater -- Sample -- Sand -- Sand dollars -- Sandfish -- Sandpipers -- Sanitation -- Sapodilla tree -- Sardines -- Sarin gas -- SARS (severe acute respiratory syndrome) -- Satellite -- Saturn -- Savanna -- Savant -- Sawfish -- Saxifrage family -- Scalar -- Scale insects -- Scanners, digital -- Scanning electron microscopy -- Scarlet fever -- Scavenger -- Schizophrenia -- Science History -- Scientific debate -- Scientific method -- Scientific theories and laws -- Scorpion flies -- Scorpionfish -- Screamers -- Screwpines -- Sculpins -- Sea anemones -- Sea cucumbers -- Sea level -- Sea lily -- Sea lions -- Sea moths -- Sea spiders -- Sea squirts and salps -- Sea urchins -- Seahorses -- Seals -- Seamounts -- Seasonal winds -- Seasons -- Secondary pollutants -- Secretary bird -- Secretor -- Sedges -- Sediment and sedimentation -- Sedimentary environment -- Sedimentary rock -- Seed ferns -- Seeds -- Segmented worms -- Seismograph -- Selection -- Sequences -- Sequencing -- Sequoia -- Serology -- Servomechanisms -- Sesame -- Set theory -- SETI -- Sewage treatment -- Sewing machine -- Sex change -- Sex determination -- Sextant -- Sexual dimorphism -- Sexual reproduction -- Sexually transmitted diseases -- Sharks -- Sheep -- Shell midden analysis -- Shingles -- Shore birds -- Shoreline protection -- Shotgun cloning -- Shrews -- Shrikes -- Shrimp -- Sickle cell anemia -- Sieve of Eratosthenes -- Silicon -- Silk cotton family (Bombacaceae) -- Sinkholes -- Skates -- Skeletal analysis -- Skeletal system -- Skinks -- Skuas -- Skunks -- Slash-and-burn agriculture -- Sleep -- Sleep disorders -- Sleeping sickness -- Slime molds -- Sloths -- Slugs -- Smallpox -- Smallpox vaccine -- Smell -- Smog -- Snails -- Snakeflies -- Snakes -- Snapdragon family -- Soap -- Sociobiology -- Sodium -- Sodium benzoate -- Sodium bicarbonate -- Sodium carbonate -- Sodium chloride -- Sodium hydroxide -- Sodium hypochlorite -- Soil -- Soil conservation -- Solar activity cycle -- Solar flare -- Solar geoengineering -- Solar illumination: Seasonal and diurnal patterns -- Solar prominence -- Solar system -- Solar wind -- Solder and soldering iron -- Solstice -- Solubility -- Solution -- Solution of equation -- SONAR -- Song birds -- Sonoluminescence -- Sorghum -- Sound waves -- South America -- Soybean -- Space -- Space probe -- Space shuttle -- Spacecraft, crewed -- Sparrows and buntings -- Species -- Spectral classification of stars -- Spectral lines -- Spectroscope -- Spectroscopy -- Spectrum -- Speech -- Sphere -- Spider monkeys -- Spiderwort family -- Spin of subatomic particles -- Spina bifida -- Spinach -- Spiny anteaters -- Spiny eels -- Spiny-headed worms -- Spiral -- Spirometer -- Split-brain functioning -- Sponges -- Spontaneous generation -- Spore -- Springtails -- Spruce -- Spurge family -- Square -- Square root -- Squid -- Squirrel fish -- Squirrels -- Stalactites and stalagmites -- Standard Model -- Star -- Star cluster -- Star formation -- Starburst galaxy -- Starfish -- Starlings -- States of matter -- Statistical mechanics -- Statistics -- Steady-state theory -- Stealth technology -- Steam engine -- Steam pressure sterilizer -- Stearic acid -- Steel -- Steganography -- Stellar evolution -- Stellar magnetic fields -- Stellar magnitudes -- Stellar populations -- Stellar structure -- Stellar wind -- Stem cells -- Stereochemistry -- Sticklebacks -- Stilts and avocets -- Stimulus -- Stoichiometry -- Stone and masonry -- Stoneflies -- Storks -- Storm -- Storm surge -- Strata -- Stratigraphy -- Stratigraphy (archaeology) -- Stream capacity and competence -- Stream valleys, channels, and floodplains -- Strepsiptera -- Stress -- Stress, ecological -- String theory -- Stroke -- Stromatolite -- Structural analysis -- Sturgeons -- Subatomic particles -- Sublimation -- Submarine -- Subsidence -- Subsurface detection -- Subtraction -- Succession -- Suckers -- Sudden infant death syndrome (SIDS) -- Sugar beet -- Sugarcane -- Sulfur -- Sulfur cycle -- Sulfur dioxide -- Sulfuric acid -- Sun -- Sunbirds -- Sunspots -- Super heavy elements -- Superclusters -- Superconductor -- Supernova -- Surface tension -- Surgery -- Surveying instruments -- Survival of the fittest -- Sustainability -- Sustainable development -- Swallows and martins -- Swamp cypress family (Taxodiaceae) -- Swamp eels -- Swans -- Sweet gale family (Myricaceae) -- Sweet potato -- Swifts -- Swordfish -- Symbiosis -- Symbol, chemical -- Symbolic logic -- Symmetry -- Synapse -- Syndrome -- Synthesis, chemical -- Synthesizer, music -- Synthesizer, voice -- Systematics -- Systems of equations -- T cells -- Tabun -- Tanagers -- Taphonomy -- Tapirs -- Tarpons -- Tarsiers -- Tartaric acid -- Tasmanian devil -- Taste -- Taxonomy -- Tay-Sachs disease -- Tea plant -- Telegraph -- Telemetry -- Telephone -- Telescope -- Television -- Temperature -- Temperature regulation -- Tenrecs -- Teratogen -- Term -- Termites -- Terns -- Terracing -- Territoriality -- Tetanus -- Tetrahedron -- Textiles -- Thalidomide -- Thanatology -- Theorem -- Thermal expansion -- Thermochemistry -- Thermocouple -- Thermodynamics -- Thermoluminescence -- Thermometer -- Thermostat -- Thistle -- Thoracic surgery -- 3D imaging -- 3D printing -- Thrips -- Thrombosis -- Thrushes -- Thunderstorm -- Tides -- Time -- Tinamous -- Tissue -- Tit family -- Titanium -- Toadfish -- Toads -- Tomato family (Solanaceae) -- Tongue worms -- Tonsillitis -- Topology -- Tornado -- Torque -- Torus -- Total solar irradiance -- Toucans --Touch -- Towers of Hanoi -- Toxic shock syndrome -- Toxicology -- Trace elements -- Tragopans -- Trains and railroads -- Tranquilizers -- Transcendental numbers -- Transducer -- Transformer -- Transgenics -- Transistor -- Transitive -- Translations -- Transpiration -- Transplant, surgical -- Trapezoid -- Tree -- Tree shrews -- Trichinosis -- Triggerfish -- Triglycerides -- Trigonometry -- Tritium -- Trogons -- Trophic levels -- Tropic birds -- Tropical cyclone -- Tropical diseases -- Trout-perch -- True bugs -- True eels -- True flies -- Trumpetfish -- Tsunami -- Tuatara lizard -- Tuber -- Tuberculosis -- Tularemia -- Tumbleweed -- Tumor -- Tuna -- Tundra -- Tunneling -- Turacos -- Turbine -- Turbulence -- Turkeys -- Turner syndrome -- Turtles -- Typhoid fever -- Typhus -- Tyrannosaurus rex -- Tyrant flycatchers -- Ulcers -- Ultracentrifuge -- Ultrasonics -- Ultraviolet astronomy -- Unconformity -- Underwater exploration -- Ungulates -- Uniformitarianism -- Units and standards -- Uplift -- Upwelling -- Uranium -- Uranus -- Urea -- Urology -- Vaccine -- Vaccine hesitancy -- Vacuum -- Vacuum tube -- Valence -- Van Allen belts -- Van der Waals forces -- Vaping and e-cigarettes -- Vapor pressure -- Variable -- Variable stars -- Variance -- Varicella zoster virus -- Variola virus -- Vegetables -- Veins -- Velocity -- Venus -- Verbena family (Verbenaceae) -- Vertebrates -- Video recording -- Viking project -- Violet family (Violaceae) -- Vipers -- Viral genetics -- Vireos -- Virtual particles -- Virtual reality -- Virus -- Viscosity -- Vision -- Vision correction surgery -- Vision disorders -- Vitamin -- Viviparity -- Vivisection -- Volatility -- Volcano -- Voles -- Volume -- Voyager spacecraft -- Vulcanization -- Vultures -- VX agent -- Wagtails and pipits -- Walkingsticks -- Walnut family -- Walruses -- Warblers -- Wasps -- Waste management -- Waste, toxic -- Water -- Water bears -- Water conservation -- Water cycle (hydrologic cycle) -- Water lilies -- Water microbiology -- Water pollution -- Water treatment -- Waterbuck -- Watershed -- Waterwheel -- Wave motion -- Waxbills -- Waxwings -- Weapon-grade plutonium and uranium, tracking -- Weasels -- Weather -- Weather forecasting -- Weather mapping -- Weather modification -- Weathering -- Weavers -- Weevils -- Welding -- West -- Nile virus -- Wetlands -- Wheat -- Whisk fern -- White dwarf -- White-eyes -- Whooping cough -- Wild type -- Wildfire -- Wildlife -- Wildlife trade (illegal) -- Willow family (Salicaceae) -- Wind -- Wind chill -- Wind energy -- Wind shear -- Wintergreen -- Wireless communications -- Wolverine -- Wombats -- Wood -- Woodpeckers -- Woolly mammoth -- Work -- Wrens -- Wren-warblers -- Wrynecks -- Xenogamy -- Xenotransplantation -- X-ray astronomy -- X-ray crystallography -- X-rays -- Xylotomy -- Yak -- Yam -- Yeast -- Yellow fever -- Yew -- Yttrium -- Y2K -- Zebras -- Zero -- Zika virus -- Zodiacal light -- Zoonoses -- Zooplankton.Covers all major areas of science, engineering, technology, as well as mathematics and the medical and health sciences, while providing a comprehensive overview of current scientific knowledge and technology. Entries typically describe scientific concepts, provide overviews of scientific areas and, in some cases, define terms.Description based on print version record.
Subjects: Science;
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