2015 in science and Ceres (dwarf planet)

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Difference between 2015 in science and Ceres (dwarf planet)

2015 in science vs. Ceres (dwarf planet)

A number of significant scientific events occurred in 2015. 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.

Asteroid

Asteroids are minor planets, especially those of the inner Solar System.

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Astronomy & Astrophysics

Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.

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Atmosphere

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body.

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Bright spots on Ceres

Several bright surface features (also known as faculae) were discovered on the dwarf planet Ceres by the ''Dawn'' spacecraft in 2015.

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Brine

Brine is a high-concentration solution of salt (usually sodium chloride) in water.

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Clay

Clay is a finely-grained natural rock or soil material that combines one or more clay minerals with possible traces of quartz (SiO2), metal oxides (Al2O3, MgO etc.) and organic matter.

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Comet

A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.

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Constellation

A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

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Dawn (spacecraft)

Dawn is a space probe launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt, Vesta and Ceres.

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Dwarf planet

A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite.

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Earth

Earth is the third planet from the Sun and the only astronomical object known to harbor life.

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Enceladus

Enceladus is the sixth-largest moon of Saturn.

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European Space Agency

The European Space Agency (ESA; Agence spatiale européenne, ASE; Europäische Weltraumorganisation) is an intergovernmental organisation of 22 member states dedicated to the exploration of space.

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Extraterrestrial life

Extraterrestrial life,Where "extraterrestrial" is derived from the Latin extra ("beyond", "not of") and terrestris ("of Earth", "belonging to Earth").

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Hubble Space Telescope

The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.

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Impact crater

An impact crater is an approximately circular depression in the surface of a planet, moon, or other solid body in the Solar System or elsewhere, formed by the hypervelocity impact of a smaller body.

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Infrared

Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.

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Kuiper belt

The Kuiper belt, occasionally called the Edgeworth–Kuiper belt, is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.

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Life on Mars

The possibility of life on Mars is a subject of significant interest to astrobiology due to its proximity and similarities to Earth.

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Magnesium sulfate

Magnesium sulfate is an inorganic salt with the formula MgSO4(H2O)x where 0≤x≤7.

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Mars

Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.

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Mercury (planet)

Mercury is the smallest and innermost planet in the Solar System.

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Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

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Moon

The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.

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NASA

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.

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New Horizons

New Horizons is an interplanetary space probe that was launched as a part of NASA's New Frontiers program.

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Occator (crater)

Occator is an impact crater located on Ceres that contains "Spot 5", the brightest of the bright spots observed by the Dawn spacecraft.

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Organic compound

In chemistry, an organic compound is generally any chemical compound that contains carbon.

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Planetesimal

Planetesimals are solid objects thought to exist in protoplanetary disks and in debris disks.

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Pluto

Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.

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Saturn

Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.

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Science (journal)

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.

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Semi-major and semi-minor axes

In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the widest points of the perimeter.

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Solar System

The Solar SystemCapitalization of the name varies.

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Spacecraft

A spacecraft is a vehicle or machine designed to fly in outer space.

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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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Sulfate minerals

The sulfate minerals are a class of minerals that include the sulfate ion (SO42−) within their structure.

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Sun

The Sun is the star at the center of the Solar System.

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Terrestrial planet

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals.

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Universe Today

Universe Today (UT) is a popular North American-based non-commercial space and astronomy news website.

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Venus

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.

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W. M. Keck Observatory

The W. M. Keck Observatory is a two-telescope astronomical observatory at an elevation of 4,145 meters (13,600 ft) near the summit of Mauna Kea in the U.S. state of Hawaii.

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