216 relations: Adenoviridae, Adult, Age of the universe, Antarctic krill, Antonov An-225 Mriya, Argentinosaurus, Asteroid belt, Atmosphere of Earth, Avoirdupois system, Barnard's Star, Base pair, Betelgeuse, Big Ben, Biosphere, Birch, Blue whale, Brome mosaic virus, Brown dwarf, Buckminsterfullerene, Bulldozer, Caffeine, Car, Carat (mass), Carina Nebula, Cat, Cathode ray tube, Cell (biology), Ceres (dwarf planet), Chandrasekhar limit, Charon (moon), Chihuahua (dog), Clonal colony, Coal, Coffee, Computer monitor, Concrete, Copper, Cosmic microwave background, Cubic metre, Dairy cattle, Darjeeling tea, Dietary Reference Intake, DNA, Dog, Dollar coin (United States), Drosophila melanogaster, Dunaliella salina, Dwarf planet, Earth, Egg cell, ..., Electron, Electronvolt, Elementary charge, Elementary particle, Elephant, ENIAC, Escherichia coli, Ethanol, Euro coins, European Union, Fish, Food and Agriculture Organization, Ganymede (moon), General Sherman (tree), Giant tortoise, Globular cluster, Gould Belt, Grain (unit), Grain size, Gram, Great Dane, Great Pyramid of Giza, Green algae, Heaviest trains, HeLa, Hemoglobin, Higgs boson, HIV, Hoba meteorite, House mouse, Housefly, Hubble Space Telescope, Human, Hyades (star cluster), Hydrogen, Hyperion (moon), Infant, International Space Station, International System of Units, Invariant mass, Iodine, James E. Brau, Jeans instability, Jon Brower Minnoch, Joule, Jupiter, Kilogram, Laniakea Supercluster, Laptop, Lead, Lion, List of most massive stars, Lithium, Litre, Local Group, Long ton, Loonie, Maize, Mars, Mass, Mass–energy equivalence, Mercury (planet), Meteorite, Metric prefix, Microgram, Milky Way, Molecular cloud, Monthly Notices of the Royal Astronomical Society, Moon, Mosquito, Muon, NASA, National Solar Observatory, Neptune, Neutrino, Neutron, Neutron star, NGC 4889, Nuclear pore, Nuclide, Observable universe, Oganesson, Oort cloud, Orange (fruit), Order of magnitude, Orders of magnitude (mass), Orion Molecular Cloud Complex, Ounce, Palace of the Parliament, Pando (tree), Particle Data Group, Petroleum, Photon, Piano, Pisces–Cetus Supercluster Complex, Planck length, Planck mass, Planck time, Planck's law, Pleiades, Ploidy, Pluto, Pollen, Populus tremuloides, Pound (mass), Primary production, Primordial black hole, Prochlorococcus, Prometheus (moon), Properties of water, Protein, Proton, R136a1, Raisin, Red dwarf, Ribosome, Rings of Saturn, RMS Titanic, Sagittarius A*, Sand, Saturn, Science (journal), Seawise Giant, Semi-trailer truck, Sequoiadendron giganteum, Short ton, Shot put, Solar mass, Space Shuttle, Sperm, Standard drink, Stone (unit), Sun, Supergiant star, Supermassive black hole, Synaptic vesicle, Tank, Television, The Astrophysical Journal, Three Gorges Dam, Titan (moon), Titanium, TNT equivalent, Tobacco mosaic virus, Ton, Tonne, Top quark, Tortoise, Triton (moon), Ubiquitin, Unified atomic mass unit, Up quark, Uranus, Vaccinia, Venus, Virginia-class submarine, Virgo Supercluster, Vitamin B12, Vitamin D, W and Z bosons, White dwarf, World Ocean, Yeast, 3 Juno, 67P/Churyumov–Gerasimenko, 951 Gaspra. Expand index (166 more) » « Shrink index
Adenoviruses (members of the family Adenoviridae) are medium-sized (90–100 nm), nonenveloped (without an outer lipid bilayer) viruses with an icosahedral nucleocapsid containing a double stranded DNA genome.
Biologically, an adult is a human or other organism that has reached sexual maturity.
In physical cosmology, the age of the universe is the time elapsed since the Big Bang.
Antarctic krill (Euphausia superba) is a species of krill found in the Antarctic waters of the Southern Ocean.
The Antonov An-225 Mriya (Антонов Ан-225, lit, NATO reporting name: "Cossack") is a strategic airlift cargo aircraft that was designed by the Antonov Design Bureau in the Ukrainian SSR within the Soviet Union during the 1980s.
Argentinosaurus (meaning "Argentine lizard") is a genus of titanosaur sauropod dinosaur first discovered by Guillermo Heredia in Argentina.
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.
The avoirdupois system (abbreviated avdp) is a measurement system of weights which uses pounds and ounces as units.
Barnard's Star is a very-low-mass red dwarf about 6 light-years away from Earth in the constellation of Ophiuchus.
A base pair (bp) is a unit consisting of two nucleobases bound to each other by hydrogen bonds.
Betelgeuse, also designated Alpha Orionis (α Orionis, abbreviated Alpha Ori, α Ori), is the ninth-brightest star in the night sky and second-brightest in the constellation of Orion.
Big Ben is the nickname for the Great Bell of the clock at the north end of the Palace of Westminster in London and is usually extended to refer to both the clock and the clock tower.
The biosphere (from Greek βίος bíos "life" and σφαῖρα sphaira "sphere") also known as the ecosphere (from Greek οἶκος oîkos "environment" and σφαῖρα), is the worldwide sum of all ecosystems.
A birch is a thin-leaved deciduous hardwood tree of the genus Betula, in the family Betulaceae, which also includes alders, hazels, and hornbeams.
The blue whale (Balaenoptera musculus) is a marine mammal belonging to the baleen whale parvorder, Mysticeti.
Brome mosaic virus (BMV) is a small (28 nm, 86S), positive-stranded, icosahedral RNA plant virus belonging to the genus Bromovirus, family Bromoviridae, in the alphavirus-like superfamily.
Brown dwarfs are substellar objects that occupy the mass range between the heaviest gas giant planets and the lightest stars, having masses between approximately 13 to 75–80 times that of Jupiter, or approximately to about.
Buckminsterfullerene is a type of fullerene with the formula C60.
A bulldozer is a crawler (continuous tracked tractor) equipped with a substantial metal plate (known as a blade) used to push large quantities of soil, sand, rubble, or other such material during construction or conversion work and typically equipped at the rear with a claw-like device (known as a ripper) to loosen densely compacted materials.
Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class.
A car (or automobile) is a wheeled motor vehicle used for transportation.
The carat (ct) (not to be confused with the karat, sometimes spelled carat, a unit of purity of gold alloys), is a unit of mass equal to 200 mg (0.2 g; 0.007055 oz) and is used for measuring gemstones and pearls.
The Carina Nebula (catalogued as NGC 3372; also known as the Grand Nebula, Great Nebula in Carina, or Eta Carinae Nebula) is a large, complex area of bright and dark nebulosity in the constellation Carina, and is located in the Carina–Sagittarius Arm.
The domestic cat (Felis silvestris catus or Felis catus) is a small, typically furry, carnivorous mammal.
The cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns and a phosphorescent screen, and is used to display images.
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms.
Ceres (minor-planet designation: 1 Ceres) is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter, slightly closer to Mars' orbit.
The Chandrasekhar limit is the maximum mass of a stable white dwarf star.
Charon, also known as (134340) Pluto I, is the largest of the five known natural satellites of the dwarf planet Pluto.
The Chihuahua (chihuahueño) is the smallest breed of dog and is named after the state of Chihuahua in Mexico.
A clonal colony or genet is a group of genetically identical individuals, such as plants, fungi, or bacteria, that have grown in a given location, all originating vegetatively, not sexually, from a single ancestor.
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams.
Coffee is a brewed drink prepared from roasted coffee beans, which are the seeds of berries from the Coffea plant.
A computer monitor is an output device which displays information in pictorial form.
Concrete, usually Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens over time—most frequently a lime-based cement binder, such as Portland cement, but sometimes with other hydraulic cements, such as a calcium aluminate cement.
Copper is a chemical element with symbol Cu (from cuprum) and atomic number 29.
The cosmic microwave background (CMB, CMBR) is electromagnetic radiation as a remnant from an early stage of the universe in Big Bang cosmology.
The cubic metre (in British English and international spelling as used by the International Bureau of Weights and Measures) or cubic meter (in American English) is the SI derived unit of volume.
Dairy cattle (also called dairy cows) are cattle cows bred for the ability to produce large quantities of milk, from which dairy products are made.
Darjeeling tea is a tea from the Darjeeling district in West Bengal, India.
The Dietary Reference Intake (DRI) is a system of nutrition recommendations from the Institute of Medicine (IOM) of the National Academies (United States).
Deoxyribonucleic acid (DNA) is a thread-like chain of nucleotides carrying the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.
The domestic dog (Canis lupus familiaris when considered a subspecies of the gray wolf or Canis familiaris when considered a distinct species) is a member of the genus Canis (canines), which forms part of the wolf-like canids, and is the most widely abundant terrestrial carnivore.
The dollar coin is a United States coin worth one United States dollar.
Drosophila melanogaster is a species of fly (the taxonomic order Diptera) in the family Drosophilidae.
Dunaliella salina is a type of halophile green micro-algae especially found in sea salt fields.
A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite.
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms.
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).
The elementary charge, usually denoted as or sometimes, is the electric charge carried by a single proton, or equivalently, the magnitude of the electric charge carried by a single electron, which has charge.
In particle physics, an elementary particle or fundamental particle is a particle with no substructure, thus not composed of other particles.
Elephants are large mammals of the family Elephantidae and the order Proboscidea.
ENIAC (Electronic Numerical Integrator and Computer) was amongst the earliest electronic general-purpose computers made.
Escherichia coli (also known as E. coli) is a Gram-negative, facultatively anaerobic, rod-shaped, coliform bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms).
Ethanol, also called alcohol, ethyl alcohol, grain alcohol, and drinking alcohol, is a chemical compound, a simple alcohol with the chemical formula.
There are eight euro coin denominations, ranging from one cent to two euros (the euro is divided into a hundred cents).
The European Union (EU) is a political and economic union of EUnum member states that are located primarily in Europe.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits.
The Food and Agriculture Organization of the United Nations (FAO; Organisation des Nations unies pour l'alimentation et l'agriculture, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura) is a specialized agency of the United Nations that leads international efforts to defeat hunger.
Ganymede (Jupiter III) is the largest and most massive moon of Jupiter and in the Solar System.
General Sherman is a giant sequoia (Sequoiadendron giganteum) tree located in the Giant Forest of Sequoia National Park in Tulare County, in the U.S. state of California.
Giant tortoises are characteristic reptiles that are currently found on two groups of tropical islands: the Aldabra Atoll and Fregate Island in Seychelles and the Galapagos Islands in Ecuador (a population at the Mascarene Islands was exterminated by the 1900s).
A globular cluster is a spherical collection of stars that orbits a galactic core as a satellite.
The Gould Belt is a partial ring of stars in the Milky Way, about 3000 light years across, tilted toward the galactic plane by about 16 to 20 degrees.
A grain is a unit of measurement of mass, and in the troy weight, avoirdupois, and Apothecaries' system, equal to exactly.
Grain size (or particle size) is the diameter of individual grains of sediment, or the lithified particles in clastic rocks.
The gram (alternative spelling: gramme; SI unit symbol: g) (Latin gramma, from Greek γράμμα, grámma) is a metric system unit of mass.
The Great Dane is a German breed of domestic dog known for its giant size.
The Great Pyramid of Giza (also known as the Pyramid of Khufu or the Pyramid of Cheops) is the oldest and largest of the three pyramids in the Giza pyramid complex bordering what is now El Giza, Egypt.
The green algae (singular: green alga) are a large, informal grouping of algae consisting of the Chlorophyta and Charophyta/Streptophyta, which are now placed in separate divisions, as well as the more basal Mesostigmatophyceae, Chlorokybophyceae and Spirotaenia.
The heaviest trains in the world are freight trains hauling bulk commodities such as coal and iron ore.
HeLa (also Hela or hela) is a cell type in an immortal cell line used in scientific research.
Hemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.
The Higgs boson is an elementary particle in the Standard Model of particle physics.
The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and over time acquired immunodeficiency syndrome (AIDS).
The Hoba or Hoba West meteorite lies on the farm "Hoba West", not far from Grootfontein, in the Otjozondjupa Region of Namibia.
The house mouse (Mus musculus) is a small mammal of the order Rodentia, characteristically having a pointed snout, small rounded ears, and a long naked or almost hairless tail.
The housefly (Musca domestica) is a fly of the suborder Cyclorrhapha.
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
Humans (taxonomically Homo sapiens) are the only extant members of the subtribe Hominina.
The Hyades (Greek Ὑάδες, also known as Melotte 25 or Collinder 50) is the nearest open cluster and one of the best-studied star clusters.
Hydrogen is a chemical element with symbol H and atomic number 1.
Hyperion (Greek: Ὑπερίων), also known as Saturn VII (7), is a moon of Saturn discovered by William Cranch Bond, George Phillips Bond and William Lassell in 1848.
An infant (from the Latin word infans, meaning "unable to speak" or "speechless") is the more formal or specialised synonym for "baby", the very young offspring of a human.
The International Space Station (ISS) is a space station, or a habitable artificial satellite, in low Earth orbit.
The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.
The invariant mass, rest mass, intrinsic mass, proper mass, or in the case of bound systems simply mass, is the portion of the total mass of an object or system of objects that is independent of the overall motion of the system.
Iodine is a chemical element with symbol I and atomic number 53.
James E. Brau (born 1946) is an American physicist at the University of Oregon (UO) who conducts research on elementary particles and fields.
In stellar physics, the Jeans instability causes the collapse of interstellar gas clouds and subsequent star formation.
Jon Brower Minnoch (September 29, 1941 – September 10, 1983) was an American man who, at his peak weight, was the heaviest human being ever recorded, weighing approximately.
The joule (symbol: J) is a derived unit of energy in the International System of Units.
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
The kilogram or kilogramme (symbol: kg) is the base unit of mass in the International System of Units (SI), and is defined as being equal to the mass of the International Prototype of the Kilogram (IPK, also known as "Le Grand K" or "Big K"), a cylinder of platinum-iridium alloy stored by the International Bureau of Weights and Measures at Saint-Cloud, France.
The Laniakea Supercluster (Laniakea; also called Local Supercluster or Local SCl or sometimes Lenakaeia) is the galaxy supercluster that is home to the Milky Way and approximately 100,000 other nearby galaxies.
A laptop, also called a notebook computer or just notebook, is a small, portable personal computer with a "clamshell" form factor, having, typically, a thin LCD or LED computer screen mounted on the inside of the upper lid of the "clamshell" and an alphanumeric keyboard on the inside of the lower lid.
Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.
The lion (Panthera leo) is a species in the cat family (Felidae).
This is a list of the most massive stars so far discovered, in solar masses.
Lithium (from lit) is a chemical element with symbol Li and atomic number 3.
The litre (SI spelling) or liter (American spelling) (symbols L or l, sometimes abbreviated ltr) is an SI accepted metric system unit of volume equal to 1 cubic decimetre (dm3), 1,000 cubic centimetres (cm3) or 1/1,000 cubic metre. A cubic decimetre (or litre) occupies a volume of 10 cm×10 cm×10 cm (see figure) and is thus equal to one-thousandth of a cubic metre. The original French metric system used the litre as a base unit. The word litre is derived from an older French unit, the litron, whose name came from Greek — where it was a unit of weight, not volume — via Latin, and which equalled approximately 0.831 litres. The litre was also used in several subsequent versions of the metric system and is accepted for use with the SI,, p. 124. ("Days" and "hours" are examples of other non-SI units that SI accepts.) although not an SI unit — the SI unit of volume is the cubic metre (m3). The spelling used by the International Bureau of Weights and Measures is "litre", a spelling which is shared by almost all English-speaking countries. The spelling "liter" is predominantly used in American English. One litre of liquid water has a mass of almost exactly one kilogram, because the kilogram was originally defined in 1795 as the mass of one cubic decimetre of water at the temperature of melting ice. Subsequent redefinitions of the metre and kilogram mean that this relationship is no longer exact.
The Local Group is the galaxy group that includes the Milky Way.
Long ton, also known as the imperial ton or displacement ton,Dictionary.com - "a unit for measuring the displacement of a vessel, equal to a long ton of 2240 pounds (1016 kg) or 35 cu.
The Canadian one dollar coin, commonly called the loonie (huard), is a gold-coloured one-dollar coin introduced in 1987.
Maize (Zea mays subsp. mays, from maíz after Taíno mahiz), also known as corn, is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
In physics, mass–energy equivalence states that anything having mass has an equivalent amount of energy and vice versa, with these fundamental quantities directly relating to one another by Albert Einstein's famous formula: E.
Mercury is the smallest and innermost planet in the Solar System.
A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon.
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit.
In the metric system, a microgram or microgramme (μg; the recommended symbol in the United States when communicating medical information is mcg) is a unit of mass equal to one millionth of a gram.
The Milky Way is the galaxy that contains our Solar System.
A molecular cloud, sometimes called a stellar nursery (if star formation is occurring within), is a type of interstellar cloud, the density and size of which permit the formation of molecules, most commonly molecular hydrogen (H2).
Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
Mosquitoes are small, midge-like flies that constitute the family Culicidae.
The muon (from the Greek letter mu (μ) used to represent it) is an elementary particle similar to the electron, with an electric charge of −1 e and a spin of 1/2, but with a much greater mass.
The National Aeronautics and Space Administration (NASA) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
The National Solar Observatory (NSO) is a United States public research institute to advance the knowledge of the physics of the Sun.
Neptune is the eighth and farthest known planet from the Sun in the Solar System.
A neutrino (denoted by the Greek letter ν) is a fermion (an elementary particle with half-integer spin) that interacts only via the weak subatomic force and gravity.
A neutron star is the collapsed core of a large star which before collapse had a total of between 10 and 29 solar masses.
NGC 4889 (also known as Coma B) is an E4 supergiant elliptical galaxy.
Nuclear pore complexes are large protein complexes that span the nuclear envelope, which is the double membrane surrounding the eukaryotic cell nucleus.
A nuclide (from nucleus, also known as nuclear species) is an atomic species characterized by the specific constitution of its nucleus, i.e., by its number of protons Z, its number of neutrons N, and its nuclear energy state.
The observable universe is a spherical region of the Universe comprising all matter that can be observed from Earth at the present time, because electromagnetic radiation from these objects has had time to reach Earth since the beginning of the cosmological expansion.
Oganesson is a synthetic chemical element with symbol Og and atomic number 118.
The Oort cloud, named after the Dutch astronomer Jan Oort, sometimes called the Öpik–Oort cloud, is a theoretical cloud of predominantly icy planetesimals proposed to surround the Sun at distances ranging from.
The orange is the fruit of the citrus species ''Citrus'' × ''sinensis'' in the family Rutaceae.
An order of magnitude is an approximate measure of the number of digits that a number has in the commonly-used base-ten number system.
To help compare different orders of magnitude, the following lists describe various mass levels between 10−40 kg and 1053 kg.
The Orion Molecular Cloud Complex (or, simply, the Orion Complex) is a star forming region with stellar ages ranging up to 12 Myr.
The ounce (abbreviated oz; apothecary symbol: ℥) is a unit of mass, weight, or volume used in most British derived customary systems of measurement.
The Palace of the Parliament (Palatul Parlamentului) is the seat of the Parliament of Romania.
Pando (Latin for "spread out"), also known as the Trembling Giant, is a clonal colony of an individual male quaking aspen (Populus tremuloides) determined to be a single living organism by identical genetic markers and assumed to have one massive underground root system.
The Particle Data Group (or PDG) is an international collaboration of particle physicists that compiles and reanalyzes published results related to the properties of particles and fundamental interactions.
Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earth's surface.
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
The piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori around the year 1700 (the exact year is uncertain), in which the strings are struck by hammers.
The Pisces–Cetus Supercluster Complex is a galaxy filament.
In physics, the Planck length, denoted, is a unit of length, equal to metres.
In physics, the Planck mass, denoted by mP, is the unit of mass in the system of natural units known as Planck units.
In quantum mechanics, the Planck time is the unit of time in the system of natural units known as Planck units.
Planck's law describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium at a given temperature T. The law is named after Max Planck, who proposed it in 1900.
The Pleiades (also known as the Seven Sisters and Messier 45), are an open star cluster containing middle-aged, hot B-type stars located in the constellation of Taurus.
Ploidy is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes.
Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.
Pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells).
Populus tremuloides is a deciduous tree native to cooler areas of North America, one of several species referred to by the common name aspen.
The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement.
Global oceanic and terrestrial photoautotroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary-production potential, and not an actual estimate of it. Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center and ORBIMAGE. In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.
Primordial black holes are a hypothetical type of black hole that formed soon after the Big Bang.
Prochlorococcus is a genus of very small (0.6 µm) marine cyanobacteria with an unusual pigmentation (chlorophyll ''a2'' and ''b2'').
Prometheus is an inner satellite of Saturn.
Water is a polar inorganic compound that is at room temperature a tasteless and odorless liquid, which is nearly colorless apart from an inherent hint of blue. It is by far the most studied chemical compound and is described as the "universal solvent" and the "solvent of life". It is the most abundant substance on Earth and the only common substance to exist as a solid, liquid, and gas on Earth's surface. It is also the third most abundant molecule in the universe. Water molecules form hydrogen bonds with each other and are strongly polar. This polarity allows it to separate ions in salts and strongly bond to other polar substances such as alcohols and acids, thus dissolving them. Its hydrogen bonding causes its many unique properties, such as having a solid form less dense than its liquid form, a relatively high boiling point of 100 °C for its molar mass, and a high heat capacity. Water is amphoteric, meaning that it is both an acid and a base—it produces + and - ions by self-ionization.
Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.
RMC 136a1 (usually abbreviated to R136a1) is a Wolf–Rayet star located at the center of R136, the central condensation of stars of the large NGC 2070 open cluster in the Tarantula Nebula.
A raisin is a dried grape.
A red dwarf (or M dwarf) is a small and relatively cool star on the main sequence, of M spectral type.
The ribosome is a complex molecular machine, found within all living cells, that serves as the site of biological protein synthesis (translation).
The rings of Saturn are the most extensive ring system of any planet in the Solar System.
RMS Titanic was a British passenger liner that sank in the North Atlantic Ocean in the early hours of 15 April 1912, after colliding with an iceberg during its maiden voyage from Southampton to New York City.
Sagittarius A* (pronounced "Sagittarius A-star", standard abbreviation Sgr A*) is a bright and very compact astronomical radio source at the center of the Milky Way, near the border of the constellations Sagittarius and Scorpius.
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.
Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.
Science, also widely referred to as Science Magazine, is the peer-reviewed academic journal of the American Association for the Advancement of Science (AAAS) and one of the world's top academic journals.
Seawise Giant, later Happy Giant, Jahre Viking, Knock Nevis, Oppama, and finally Mont, was a ULCC supertanker that was the longest ship ever built.
A semi-trailer truck (more commonly semi truck or simply "semi") is the combination of a tractor unit and one or more semi-trailers to carry freight.
Sequoiadendron giganteum (giant sequoia; also known as giant redwood, Sierra redwood, Sierran redwood, Wellingtonia or simply Big Treea nickname used by John Muir) is the sole living species in the genus Sequoiadendron, and one of three species of coniferous trees known as redwoods, classified in the family Cupressaceae in the subfamily Sequoioideae, together with Sequoia sempervirens (coast redwood) and Metasequoia glyptostroboides (dawn redwood).
The short ton is a unit of weight equal to.
The shot put (pronounced) is a track and field event involving "throwing"/"putting" (throwing in a pushing motion) a heavy spherical object—the shot—as far as possible.
The solar mass is a standard unit of mass in astronomy, equal to approximately.
The Space Shuttle was a partially reusable low Earth orbital spacecraft system operated by the U.S. National Aeronautics and Space Administration (NASA), as part of the Space Shuttle program.
Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning "seed").
A standard drink is a measure of alcohol consumption representing a hypothetical beverage which contains a fixed amount of pure alcohol.
The stone or stone weight (abbreviation: st.) is an English and imperial unit of mass now equal to 14 pounds (6.35029318 kg).
The Sun is the star at the center of the Solar System.
Supergiants are among the most massive and most luminous stars.
A supermassive black hole (SMBH or SBH) is the largest type of black hole, on the order of hundreds of thousands to billions of solar masses, and is found in the centre of almost all currently known massive galaxies.
In a neuron, synaptic vesicles (or neurotransmitter vesicles) store various neurotransmitters that are released at the synapse.
A tank is an armoured fighting vehicle designed for front-line combat, with heavy firepower, strong armour, tracks and a powerful engine providing good battlefield maneuverability.
Television (TV) is a telecommunication medium used for transmitting moving images in monochrome (black and white), or in colour, and in two or three dimensions and sound.
The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
The Three Gorges Dam is a hydroelectric gravity dam that spans the Yangtze River by the town of Sandouping, in Yiling District, Yichang, Hubei province, China.
Titan is the largest moon of Saturn.
Titanium is a chemical element with symbol Ti and atomic number 22.
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.
Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus, genus tobamovirus that infects a wide range of plants, especially tobacco and other members of the family Solanaceae.
The ton is a unit of measure.
The tonne (Non-SI unit, symbol: t), commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms;.
The top quark, also known as the t quark (symbol: t) or truth quark, is the most massive of all observed elementary particles.
Tortoises are a family, Testudinidae. Testudinidae is a Family under the order Testudines and suborder Cryptodira.
Triton is the largest natural satellite of the planet Neptune, and the first Neptunian moon to be discovered.
Ubiquitin is a small (8.5 kDa) regulatory protein found in most tissues of eukaryotic organisms, i.e. it occurs ''ubiquitously''.
The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass).
The up quark or u quark (symbol: u) is the lightest of all quarks, a type of elementary particle, and a major constituent of matter.
Uranus is the seventh planet from the Sun.
Vaccinia virus (VACV or VV) is a large, complex, enveloped virus belonging to the poxvirus family.
Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.
The Virginia-class, also known as the SSN-774 class, is a class of nuclear-powered fast attack submarines (hull classification symbol SSN) in service with the United States Navy. The Virginia-class attack submarine is the U.S. Navy’s newest undersea warfare platform and incorporates the latest in stealth, intelligence gathering and weapons systems technology. Attack submarines are designed to seek and destroy enemy submarines and surface ships as well as project power ashore with Tomahawk cruise missiles and Special Operation Forces, carry out Intelligence, Surveillance, and Reconnaissance (ISR) missions; support carrier battle group operations; and engage in naval mine warfare. Virginia-class submarines are designed for a broad spectrum of open-ocean and littoral (shallow coastal water) missions. They are replacing older s, many of which have already been decommissioned. The ''Seawolf''-class attack submarine was originally intended to succeed the Los Angeles-class, but production was canceled after only three submarines were produced due to budgeting restraints at the end of the Cold War, and the final submarine was manufactured in 1995. Virginia-class submarines will be acquired through 2043, and are expected to remain in service past 2060. Based on recent updates to the designs, some of the Virginia-class submarines are expected to still be in service in 2070.
The Virgo Supercluster (Virgo SC) or the Local Supercluster (LSC or LS) is a mass concentration of galaxies containing the Virgo Cluster and Local Group, which in turn contains the Milky Way and Andromeda galaxies.
Vitamin B12, also called cobalamin, is a water-soluble vitamin that is involved in the metabolism of every cell of the human body: it is a cofactor in DNA synthesis, and in both fatty acid and amino acid metabolism.
Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and multiple other biological effects.
The W and Z bosons are together known as the weak or more generally as the intermediate vector bosons. These elementary particles mediate the weak interaction; the respective symbols are,, and.
A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter.
The World Ocean or Global Ocean (colloquially the sea or the ocean) is the interconnected system of Earth's oceanic waters, and comprises the bulk of the hydrosphere, covering (70.8%) of Earth's surface, with a total volume of.
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom.
Juno, minor-planet designation 3 Juno in the Minor Planet Center catalogue system, is an asteroid in the asteroid belt.
67P/Churyumov–Gerasimenko (abbreviated as 67P or 67P/C-G) is a Jupiter-family comet, originally from the Kuiper belt, with a current orbital period of 6.45 years, a rotation period of approximately 12.4 hours and a maximum velocity of.
951 Gaspra is an S-type asteroid that orbits very close to the inner edge of the asteroid belt.
1 E -1 kg, 1 E -10 kg, 1 E -11 kg, 1 E -12 kg, 1 E -13 kg, 1 E -14 kg, 1 E -15 kg, 1 E -16 kg, 1 E -17 kg, 1 E -18 kg, 1 E -19 kg, 1 E -2 kg, 1 E -20 kg, 1 E -21 kg, 1 E -22 kg, 1 E -23 kg, 1 E -24 kg, 1 E -25 kg, 1 E -26 kg, 1 E -27 kg, 1 E -28 kg, 1 E -29 kg, 1 E -3 kg, 1 E -30 kg, 1 E -31 kg, 1 E -4 kg, 1 E -5 kg, 1 E -6 kg, 1 E -7 kg, 1 E -8 kg, 1 E -9 kg, 1 E 0 kg, 1 E 1 kg, 1 E 10 kg, 1 E 11 kg, 1 E 12 kg, 1 E 13 kg, 1 E 14 kg, 1 E 2 kg, 1 E 3 kg, 1 E 4 kg, 1 E 5 kg, 1 E 6 kg, 1 E 7 kg, 1 E 8 kg, 1 E 9 kg, 1 E- kg, 1 E-1 kg, 1 E-10 kg, 1 E-11 kg, 1 E-12 kg, 1 E-13 kg, 1 E-14 kg, 1 E-15 kg, 1 E-16 kg, 1 E-17 kg, 1 E-18 kg, 1 E-19 kg, 1 E-2 kg, 1 E-20 kg, 1 E-21 kg, 1 E-22 kg, 1 E-23 kg, 1 E-24 kg, 1 E-25 kg, 1 E-26 kg, 1 E-27 kg, 1 E-28 kg, 1 E-29 kg, 1 E-3 kg, 1 E-30 kg, 1 E-31 kg, 1 E-32 kg, 1 E-33 kg, 1 E-4 kg, 1 E-5 kg, 1 E-6 kg, 1 E-7 kg, 1 E-8 kg, 1 E-9 kg, 1 E0 kg, 1 E1 kg, 1 E10 kg, 1 E11 kg, 1 E12 kg, 1 E13 kg, 1 E14 kg, 1 E15 kg, 1 E16 kg, 1 E17 kg, 1 E18 kg, 1 E19 kg, 1 E2 kg, 1 E20 kg, 1 E21 kg, 1 E22 kg, 1 E23 kg, 1 E24 kg, 1 E25 kg, 1 E26 kg, 1 E27 kg, 1 E28 kg, 1 E29 kg, 1 E3 kg, 1 E30 kg, 1 E31 kg, 1 E32 kg, 1 E33 kg, 1 E36 kg, 1 E39 kg, 1 E4 kg, 1 E40 kg, 1 E41 kg, 1 E5 kg, 1 E51 kg, 1 E52 kg, 1 E53 kg, 1 E6 kg, 1 E7 kg, 1 E8 kg, 1 E9 kg, 1 kg, 1e-1 kg, 1e-10 kg, 1e-11 kg, 1e-12 kg, 1e-13 kg, 1e-14 kg, 1e-15 kg, 1e-16 kg, 1e-17 kg, 1e-18 kg, 1e-19 kg, 1e-2 kg, 1e-20 kg, 1e-21 kg, 1e-22 kg, 1e-23 kg, 1e-24 kg, 1e-25 kg, 1e-26 kg, 1e-27 kg, 1e-28 kg, 1e-29 kg, 1e-3 kg, 1e-30 kg, 1e-31 kg, 1e-4 kg, 1e-5 kg, 1e-6 kg, 1e-7 kg, 1e-8 kg, 1e-9 kg, 1e0 kg, 1e1 kg, 1e10 kg, 1e11 kg, 1e12 kg, 1e13 kg, 1e14 kg, 1e15 kg, 1e16 kg, 1e17 kg, 1e18 kg, 1e19 kg, 1e2 kg, 1e20 kg, 1e21 kg, 1e22 kg, 1e23 kg, 1e24 kg, 1e25 kg, 1e26 kg, 1e27 kg, 1e28 kg, 1e29 kg, 1e3 kg, 1e30 kg, 1e4 kg, 1e5 kg, 1e6 kg, 1e7 kg, 1e8 kg, 1e9 kg, Attogram, Centigram, Decigram, Exagram, Femtogram, Gigagram, Nanogram, Nanograms, Petagram, Picogram, Teragram (unit), Yoctogram, Yottagram, Zeptogram, Zettagram.