Топ-100 ⓘ Free online encyclopedia. Did you know? page 239

ⓘ Free online encyclopedia. Did you know? page 239

                                               

Apollo (spacecraft)

The Apollo spacecraft was composed of three parts designed to accomplish the American Apollo programs goal of landing astronauts on the Moon by the end of the 1960s and returning them safely to Earth. The expendable spacecraft consisted of a comb ...

                                               

Cargo spacecraft

Cargo spacecraft are robotic spacecraft that are designed to carry cargo, possibly to support space stations operation by transporting food, propellant and other supplies. This is different from space probes, whose missions are to conduct scienti ...

                                               

Buran (spacecraft)

Buran was the first spaceplane to be produced as part of the Soviet/Russian Buran programme. It is, depending on the source, also known as OK-1K1 ", Orbiter K1 ", OK 1.01 or Shuttle 1.01 ". Besides describing the first operational Soviet/Russian ...

                                               

Vostok (spacecraft)

The Vostok was a type of spacecraft built by the Soviet Union. The first human spaceflight was accomplished with Vostok 1 on April 12, 1961, by Soviet cosmonaut Yuri Gagarin. The spacecraft was part of the Vostok programme, in which six manned sp ...

                                               

Voskhod (spacecraft)

The Voskhod was a spacecraft built by the Soviet Unions space program for human spaceflight as part of the Voskhod programme. It was a development of and a follow-on to the Vostok spacecraft. Voskhod 1 was used for a three-man flight whereas Vosk ...

                                               

Gaganyaan

Gaganyaan is an Indian crewed orbital spacecraft intended to be the formative spacecraft of the Indian Human Spaceflight Programme. The spacecraft is being designed to carry three people, and a planned upgraded version will be equipped with rende ...

                                               

Hermes (spacecraft)

Hermes was a proposed spaceplane designed by the French Centre National dEtudes Spatiales in 1975, and later by the European Space Agency. It was superficially similar to the American Boeing X-20 Dyna-Soar and the larger Space Shuttle. In January ...

                                               

Project Gemini

Project Gemini was NASAs second human spaceflight program. Conducted between projects Mercury and Apollo, Gemini started in 1961 and concluded in 1966. The Gemini spacecraft carried a two-astronaut crew. Ten Gemini crews flew low Earth orbit miss ...

                                               

Zarya (spacecraft)

The Zarya spacecraft was a secret Soviet project of the late 1980s aiming to design and build a large manned vertical-takeoff, vertical-landing reusable space capsule, a much larger replacement for the Soyuz. The project was developed during 1985 ...

                                               

Kliper

Kliper was an early-2000s proposed partially-reusable crewed spacecraft concept by RSC Energia. Due to lack of funding from the ESA and RSA, the project was indefinitely postponed by 2006. Designed primarily to replace the Soyuz spacecraft, Klipe ...

                                               

ITS launch vehicle

The ITS launch vehicle was a 2016–2017 design for a privately-funded very large 12-meter -diameter orbital launch vehicle planned to be developed by SpaceX. Design work was discontinued in 2017 when development was shifted to a smaller 9-meter ve ...

                                               

Reusable launch system

A reusable launch system is a space launch system that includes the recovery of some or all of the component stages. To date, several fully reusable sub-orbital systems and partially reusable orbital systems have been flown. The first reusable la ...

                                               

Orion (spacecraft)

The Orion Multi-Purpose Crew Vehicle is a class of partially reusable spacecraft used in NASAs human spaceflight programs. Consisting of two components – a Crew Module manufactured by Lockheed Martin and a European Service Module manufactured by ...

                                               

Progress (spacecraft)

The Progress is a Russian expendable cargo spacecraft. Its purpose is to deliver supplies needed to sustain human presence in orbit. While it does not carry a crew it can be boarded by astronauts when docked with a space station, hence it being c ...

                                               

Soyuz (spacecraft)

Soyuz is a series of spacecraft designed for the Soviet space program by the Korolev Design Bureau in the 1960s that remains in service today, having made more than 140 flights. The Soyuz succeeded the Voskhod spacecraft and was originally built ...

                                               

100 Year Starship

The 100 Year Starship is a joint U.S. Defense Advanced Research Projects Agency and National Aeronautics and Space Administration grant project to a private entity. The goal of the study is to create a business plan that can foster the research a ...

                                               

Orel (spacecraft)

Orel or Oryol, formerly Federation, and PPTS, is a project by Roscosmos to develop a new-generation, partially reusable crewed spacecraft. Until 2016, the official name was Russian: Пилотируемый Транспортный Корабль Нового Поколения, lit. New Gen ...

                                               

Fuji (spacecraft)

Fuji was a crewed spacecraft of the space capsule kind, proposed by Japans National Space Development Agency Advanced mission Research center in December 2001. The Fuji design was ultimately not adopted.

                                               

Shenzhou (spacecraft)

Shenzhou is a spacecraft developed and operated by China using Soyuz technology to support its crewed spaceflight program. The name is variously translated as divine vessel, divine craft, or divine ship. Its design resembles the Russian Soyuz spa ...

                                               

Space probe

A space probe is a robotic spacecraft that does not orbit Earth, but instead, explores further into outer space. A space probe may approach the Moon; travel through interplanetary space; flyby, orbit, or land on other planetary bodies; or enter i ...

                                               

Satellite

In the context of spaceflight, a satellite is an object that has been intentionally placed into orbit. These objects are called artificial satellites to distinguish them from natural satellites such as Earths Moon. On 4 October 1957 the Soviet Un ...

                                               

Aura (satellite)

Aura is a multi-national NASA scientific research satellite in orbit around the Earth, studying the Earths ozone layer, air quality and climate. It is the third major component of the Earth Observing System following on Terra and Aqua. Aura follo ...

                                               

Arase (satellite)

Arase, formerly known as Exploration of energization and Radiation in Geospace, is a scientific satellite to study the Van Allen belts. It was developed by the Institute of Space and Astronautical Science of JAXA. While there was a scientist work ...

                                               

Interstellar Boundary Explorer

Interstellar Boundary Explorer is a NASA satellite in Earth orbit that uses Energetic Neutral Atoms to image the interaction region between the Solar System and interstellar space. The mission is part of NASAs Small Explorer program and was launc ...

                                               

LARES (satellite)

LARES is an Italian Space Agency scientific satellite launched from the ESA Guiana Space Centre of Kourou, French Guiana, by the first flight of the European launch vehicle Vega on 13 February 2012. An improved version called LARES 2 is scheduled ...

                                               

THEOS (satellite)

THEOS, also known as Thaichote, is an earth observation mission of Thailand, developed at EADS Astrium SAS, Toulouse, France. In July 2004, EADS Astrium SAS signed a contract for delivery of THEOS with GISTDA of Bangkok, Thailand. GISTDA is Thail ...

                                               

Akebono (satellite)

Akebono is a satellite to study aurora and Earths magnetosphere environment. It was developed by Institute of Space and Astronautical Science and launched by M-3SII rocket on February 22, 1989. After 26 years of successful observation, operation ...

                                               

Amalthea (moon)

Amalthea is a moon of Jupiter. It has the third closest orbit around Jupiter among known moons and was the fifth moon of Jupiter to be discovered, so is also known as Jupiter V. Edward Emerson Barnard discovered the moon on 9 September 1892 and n ...

                                               

Amos (satellite)

Amos is a series of Israeli communications satellites operated by Israel-based Spacecom. All Amos satellites were developed by Israel Aerospace Industries using the AMOS bus platform, except for Amos-5 which was developed by JSC Reshetnev using t ...

                                               

Aryabhata (satellite)

Aryabhata was Indias first satellite, named after the famous Indian astronomer of the same name. It was launched on 19 April 1975 from Kapustin Yar, a Russian rocket launch and development site in Astrakhan Oblast using a Kosmos-3M launch vehicle ...

                                               

Ariel (moon)

Ariel is the fourth-largest of the 27 known moons of Uranus. Ariel orbits and rotates in the equatorial plane of Uranus, which is almost perpendicular to the orbit of Uranus and so has an extreme seasonal cycle. It was discovered in October 1851 ...

                                               

Asterix (satellite)

Asterix, the first French satellite, was launched on November 26, 1965 by a Diamant A rocket from the CIEES launch site at Hammaguir, French Algeria. With Asterix, France became the sixth country to have an artificial satellite in orbit after the ...

                                               

BelKA

It was a remote sensing satellite that utilizes the Victoria universal satellite bus, developed by Belarusian researchers and Russian Rocket and Space Corporation RSC Energia for National Academy of Sciences of the Republic of Belarus as the fina ...

                                               

Vanth (moon)

Vanth, full designation Orcus I Vanth, is the single known natural satellite of the plutino and likely dwarf planet Orcus. With a diameter of about 440 km, it is probably the third-largest known moon of a Trans-Neptunian object, after Pluto I Cha ...

                                               

Ganymede (moon)

Ganymede, a satellite of Jupiter, is the largest and most massive of the Solar Systems moons. The ninth largest object in the Solar System, it is the largest without a substantial atmosphere. It has a diameter of 5.268 km and is 8% larger than th ...

                                               

Himalia (moon)

Himalia, or Jupiter VI, is the largest irregular satellite of Jupiter, with a diameter of at least 140 km. It is the fifth largest Jovian satellite, after the four Galilean moons. It was discovered by Charles Dillon Perrine at the Lick Observator ...

                                               

Hyperion (moon)

Hyperion, also known as Saturn VII, is a moon of Saturn discovered by William Cranch Bond, George Phillips Bond and William Lassell in 1848. It is distinguished by its irregular shape, its chaotic rotation, and its unexplained sponge-like appeara ...

                                               

Dione (moon)

Dione is a moon of Saturn. It was discovered by Italian astronomer Giovanni Domenico Cassini in 1684. It is named after the Titaness Dione of Greek mythology. It is also designated Saturn IV.

                                               

Dysnomia (moon)

Dysnomia Eris I Dysnomia) is the only known moon of the dwarf planet Eris and very probably the second-largest known moon of a dwarf planet, after Pluto I Charon. It was discovered in 2005 by Mike Brown and the laser guide star adaptive optics te ...

                                               

Europa (moon)

Europa, or Jupiter II, is the smallest of the four Galilean moons orbiting Jupiter, and the sixth-closest to the planet of all the 79 known moons of Jupiter. It is also the sixth-largest moon in the Solar System. Europa was discovered in 1610 by ...

                                               

Io (moon)

Io, or Jupiter I, is the innermost and third-largest of the four Galilean moons of the planet Jupiter. It is the fourth-largest moon in the solar system, has the highest density of all of them, and has the lowest amount of water of any known astr ...

                                               

Callisto (moon)

Callisto, or Jupiter IV, is the second-largest moon of Jupiter, after Ganymede. It is the third-largest moon in the Solar System after Ganymede and Saturns largest moon Titan, and the largest object in the Solar System that may not be properly di ...

                                               

Linus (moon)

Kalliope I Linus is an asteroid moon that orbits the large M-type asteroid 22 Kalliope. It was discovered on August 29, 2001, by astronomers Jean-Luc Margot and Michael E. Brown with the Keck telescope, in Hawaii. Another team also detected the m ...

                                               

MK-1TS

MK-1TS Micron is a small Ukrainian microsatellite manufactured by Yuzhmash. MK-1TS was launched on December 24, 2004, at 13:20 from the Plesetsk cosmodrome using a Cyclone-3 launch vehicle together with Sich-1M satellite. Both satellites were pla ...

                                               

Mimas (moon)

Mimas, also designated Saturn I, is a moon of Saturn which was discovered in 1789 by William Herschel. It is named after Mimas, a son of Gaia in Greek mythology. With a diameter of 396 kilometres 246 mi it is the smallest astronomical body that i ...

                                               

Miranda (moon)

Miranda, also designated Uranus V, is the smallest and innermost of Uranuss five round satellites. It was discovered by Gerard Kuiper on 16 February 1948 at McDonald Observatory in Texas, and named after Miranda from William Shakespeares play The ...

                                               

Mikhailo Lomonosov (satellite)

Mikhailo Lomonosov is an astronomical satellite operated by Moscow State University named after Mikhail Lomonosov.

                                               

Quantum Experiments at Space Scale

Quantum Experiments at Space Scale, is a Chinese research project in the field of quantum physics. Tiangong-2 is Chinas second Space Laboratory module which was launched on 15 Sep 2016. Tiangong-2 carries a total of 14 mission and experiment pack ...

                                               

Nereid (moon)

Nereid, or Neptune II, is the third-largest moon of Neptune. Of all known moons in the Solar System, it has the most eccentric orbit. It was the second moon of Neptune to be discovered, by Gerard Kuiper in 1949.

                                               

Oberon (moon)

Oberon, also designated Uranus IV, is the outermost major moon of the planet Uranus. It is the second-largest and second most massive of the Uranian moons, and the ninth most massive moon in the Solar System. Discovered by William Herschel in 178 ...

                                               

Ohsumi (satellite)

Ōsumi is the first Japanese satellite put into orbit. It was launched on February 11, 1970 at 04:25 UTC with a Lambda 4S-5 rocket from Uchinoura Space Center by Institute of Space and Aeronautical Science, University of Tokyo, now part of the Jap ...

                                               

Rhea (moon)

Rhea is the second-largest moon of Saturn and the ninth-largest moon in the Solar System. It is the second smallest body in the Solar System for which precise measurements have confirmed a shape consistent with hydrostatic equilibrium, after dwar ...

                                               

Satcom (satellite)

"Satcom" is also an acronym of, and generic term for, satellite communications. The Satcom series was a family of communications satellites originally developed and operated by RCA American Communications. Satcom was one of the early geostationar ...

                                               

Terra (satellite)

Terra is a multi-national NASA scientific research satellite in a Sun-synchronous orbit around the Earth. It is the flagship of the Earth Observing System. The name "Terra" comes from the Latin word for Earth. A naming contest was held by NASA am ...

                                               

Tethys (moon)

Tethys, or Saturn III, is a mid-sized moon of Saturn about 1.060 km across. It was discovered by G. D. Cassini in 1684 and is named after the titan Tethys of Greek mythology. Tethys has a low density of 0.98 g/cm 3, the lowest of all the major mo ...

                                               

Titania (moon)

Titania is the largest of the moons of Uranus and the eighth largest moon in the Solar System at a diameter of 1.578 kilometres. Discovered by William Herschel in 1787, Titania is named after the queen of the fairies in Shakespeares A Midsummer N ...

                                               

Umbriel (moon)

Umbriel is a moon of Uranus discovered on October 24, 1851, by William Lassell. It was discovered at the same time as Ariel and named after a character in Alexander Popes poem The Rape of the Lock. Umbriel consists mainly of ice with a substantia ...

                                               

Thebe (moon)

Thebe, also known as Jupiter XIV, is the fourth of Jupiters moons by distance from the planet. It was discovered by Stephen P. Synnott in images from the Voyager 1 space probe taken on March 5, 1979, while making its flyby of Jupiter. In 1983, it ...

                                               

Super Low Altitude Test Satellite

SLATS, the Super Low Altitude Test Satellite, is a JAXA satellite intended to demonstrate operations in very low Earth orbit, using ion engines to counteract aerodynamic drag from the Earths atmosphere which is substantial at such lower orbital a ...

                                               

Enceladus

Enceladus is the sixth-largest moon of Saturn. It is about 500 kilometers in diameter, about a tenth of that of Saturns largest moon, Titan. Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar ...

                                               

Iapetus (moon)

Iapetus, or rarely Japetus, is the third-largest natural satellite of Saturn, eleventh-largest in the Solar System, and the largest body in the Solar System known not to be in hydrostatic equilibrium. Discoveries by the Cassini mission in 2007 re ...

                                               

Ilmare (moon)

Ilmare, or Varda I, full designation 174567 Varda I Ilmare, is the single known natural satellite of the Kuiper Belt Object and possible dwarf planet Varda. It was discovered by Keith Noll et al. in 2009, at a separation of about 0.12 arcsec, usi ...

                                               

Interface Region Imaging Spectrograph

The Interface Region Imaging Spectrograph, also called Explorer 94, is a NASA solar observation satellite. The mission was funded through the Small Explorer program to investigate the physical conditions of the solar limb, particularly the chromo ...

                                               

Pandora (moon)

Pandora is an inner satellite of Saturn. It was discovered in 1980 from photos taken by the Voyager 1 probe, and was provisionally designated S/1980 S 26. In late 1985 it was officially named after Pandora from Greek mythology. It is also designa ...

                                               

Prometheus (moon)

Prometheus is an inner satellite of Saturn. It was discovered in 1980 from photos taken by the Voyager 1 probe, and was provisionally designated S/1980 S 27. In late 1985 it was officially named after Prometheus, a Titan in Greek mythology. It is ...

                                               

Space Race

The Space Race was a 20th-century competition between two Cold War rivals, the Soviet Union and the United States, to achieve firsts in spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the two na ...

                                               

Timeline of first orbital launches by country

This is a timeline of first orbital launches by country. While a number of countries have built satellites, as of 2019, eleven countries have had the capability to send objects into orbit using their own launch vehicles. Russia and Ukraine inheri ...

                                               

Soviet crewed lunar programs

The Soviet crewed lunar programs were a series of programs pursued by the Soviet Union to land a person on the Moon, in competition with the United States Apollo program to achieve the same goal set publicly by President John F. Kennedy on May 25 ...

                                               

Post–World War II economic expansion

The post–World War II economic expansion, also known as the golden age of capitalism and the postwar economic boom or simply the long boom, was a broad period of worldwide economic expansion beginning after World War II and ending with the 1973–1 ...

                                               

Cold War

The Cold War was a period of geopolitical tension between the Soviet Union with its satellite states, and the United States with its allies after World War II. The historiography of the conflict began between 1946 and 1947. The Cold War began to ...

                                               

Extravehicular activity

Extravehicular activity is any activity done by an astronaut or cosmonaut outside a spacecraft beyond the Earths appreciable atmosphere. The term most commonly applies to a spacewalk made outside a craft orbiting Earth. On March 18, 1965, Alexei ...

                                               

Timeline of Solar System exploration

This is a timeline of Solar System exploration ordered by date of spacecraft launch. It includes: All spacecraft that have left Earth orbit for the purposes of Solar System exploration or were launched with that intention but failed, including lu ...

                                               

Spaceflight

Spaceflight is ballistic flight into or through outer space. Spaceflight can occur with spacecraft with or without humans on board. Yuri Gagarin of the Soviet Union was the first human to conduct a spaceflight. Examples of human spaceflight inclu ...

                                               

Astronautics

Astronautics is the theory and practice of travel beyond Earths atmosphere. The term astronautics originally astronautique in French was coined in the 1920s by J H. Rosny, president of the Goncourt academy, in analogy with aeronautics. Because th ...

                                               

Arms race

An arms race occurs when two or more nations participate in interactive or competitive increases in "persons under arms" as well as "war material". Simply defined as a competition between two or more states to have superior armed forces; a compet ...

                                               

Tree

In botany, a tree is a perennial plant with an elongated stem, or trunk, supporting branches and leaves in most species. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

                                               

Bartek (tree)

For alternative meanings of Bartek, see: Bartek disambiguation. Bartek is an ancient oak tree in Poland. It grows in Zagnansk near Kielce in the Swietokrzyskie Mountains. Its age, previously estimated at up to 1200 years, has recently been establ ...

                                               

Washington (tree)

The Washington tree is a giant sequoia in the Giant Forest Grove in Tulare County, California, within Sequoia National Park. It is named after George Washington, first President of the United States. Until it partially collapsed in January 2005, ...

                                               

General Grant (tree)

The General Grant tree is the largest giant sequoia in the General Grant Grove section of Kings Canyon National Park in California and the second largest tree in the world. Once thought to be well over 2.000 years old, recent estimates suggest th ...

                                               

General Sherman (tree)

General Sherman is a giant sequoia tree located in the Giant Forest of Sequoia National Park in Tulare County, in the U.S. state of California. By volume, it is the largest known living single-stem tree on Earth. While the General Sherman is the ...

                                               

Hyperion (tree)

Hyperion is a coast redwood in California that was measured at 115.85 m, which ranks it as the worlds tallest known living tree.

                                               

Gopher wood

You may be looking for the tree Torreya taxifolia, sometimes called "gopher wood". Gopher wood or gopherwood is a term used once in the Bible for the substance from which Noahs ark was built. Genesis 6:14 states that Noah was to build the Ark of ...

                                               

Celtis

Celtis is a genus of about 60–70 species of deciduous trees, commonly known as hackberries or nettle trees, widespread in warm temperate regions of the Northern Hemisphere, in southern Europe, southern and eastern Asia, and southern and central N ...

                                               

Chandelier Tree

The Chandelier Tree in Drive-Thru Tree Park is a 276-foot tall coast redwood tree in Leggett, California with a 6-foot wide by 6-foot-9-inch high hole cut through its base to allow a car to drive through. Its base measures 16 ft diameter at breas ...

                                               

Methuselah (tree)

Methuselah is a 4.851-year-old Great Basin bristlecone pine tree growing high in the White Mountains of Inyo County in eastern California. It is recognized as the non-clonal tree with the greatest confirmed age in the world.

                                               

Azadirachta indica

Azadirachta indica, commonly known as neem, nimtree or Indian lilac, is a tree in the mahogany family Meliaceae. It is one of two species in the genus Azadirachta, and is native to the Indian subcontinent, i.e. India, Nepal, Pakistan, Bangladesh, ...

                                               

Pando (tree)

Pando, also known as the trembling giant, is a clonal colony of an individual male quaking aspen determined to be a single living organism by identical genetic markers and assumed to have one massive underground root system. The plant is located ...

                                               

President (tree)

The President is a giant sequoia located in the Giant Forest of Sequoia National Park in the United States, east of Visalia, California. It is not the tallest giant sequoia tree in the world with a height of about 247 feet, nor the widest at abou ...

                                               

Prometheus (tree)

Prometheus was the oldest known non-clonal organism, a Great Basin bristlecone pine tree growing near the tree line on Wheeler Peak in eastern Nevada, United States. The tree, which was at least 4.862 years old and possibly more than 5.000, was c ...

                                               

Teak

Teak is a tropical hardwood tree species placed in the flowering plant family Lamiaceae. Some forms of teak are known as Burmese teak, Central Province teak, as well as Nagpur teak. T. grandis is a large, deciduous tree that occurs in mixed hardw ...

                                               

Tūbā

Tūbā is a term often associated with a tree that Muslims believe grows in Al-Jannah. The term is only mentioned once in the Quran in the context of blessedness and it is not mentioned as a tree by name. The only other source that relates the argu ...

                                               

Wawona Tree

The Wawona Tree, also known as the Wawona Tunnel Tree, was a famous giant sequoia that stood in Mariposa Grove, Yosemite National Park, California, USA, until February 1969. It had a height of 227 feet and was 26 feet in diameter at the base. The ...

                                               

Vitellaria

Vitellaria paradoxa, commonly known as shea tree, shi tree, or vitellaria, is a tree of the family Sapotaceae. It is the only species in the genus Vitellaria, and is indigenous to Africa. The shea fruit consists of a thin, tart, nutritious pulp t ...

                                               

Jewellery

Jewellery or jewelry consists of decorative items worn for personal adornment, such as brooches, rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the clothes. From a western perspective, the ...

                                               

Bijou (jewellery)

Baudelaire writes of the bijous function thus in his novel Les Bijoux, as does Diderot in Les bijoux indiscrets. Roughly, "The Indiscreet Jewels". In both novels, the bijou serves as a symbol, like a pink carnation may do in English culture. It i ...

                                               

Noble metal

In chemistry, the noble metals are metals that are resistant to corrosion and oxidation in moist air. The short list of chemically noble metals comprises ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, and gold. More inclusive l ...

                                               

Gold

Gold is a chemical element with the symbol Au and atomic number 79, making it one of the higher atomic number elements that occur naturally. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. C ...

                                               

Colored gold

Pure gold is slightly reddish yellow in color, but colored gold in various other colors can be produced. Colored golds can be classified in three groups: Surface treatments, such as oxide layers. Alloys with silver and copper in various proportio ...

                                               

Third Imperial (Faberge egg)

The Third Imperial egg is an Easter Faberge egg created in the workshop of Peter Carl Faberge for the Russian tsar Alexander III and presented to his wife, Maria Feodorovna, on Orthodox Easter of 1887. The egg was created in Louis XVI style and i ...

                                               

Platinum

Platinum is a chemical element with the symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name is derived from the Spanish term platino, meaning "little silver". ...

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