Comet and Meteorite

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Difference between Comet and Meteorite

Comet vs. Meteorite

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. 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.

Amino acid

Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.

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Asteroid

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

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Asteroid belt

The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.

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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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DNA

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.

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Gram

The gram (alternative spelling: gramme; SI unit symbol: g) (Latin gramma, from Greek γράμμα, grámma) is a metric system unit of mass.

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Impact event

An impact event is a collision between astronomical objects causing measurable effects.

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List of impact craters on Earth

This list of impact craters on Earth contains a selection of the 190 confirmed craters given in the Earth Impact Database.

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List of unconfirmed impact craters on Earth

This list of more than 130 possible impact craters on Earth includes theoretical impact sites that have appeared several times in the literature, or may have been endorsed by the Impact Field Studies Group (IFSG) or Expert Database on Earth Impact Structures (EDEIS), but not yet confirmed by the Earth Impact Database (EID).

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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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Meteor shower

A meteor shower is a celestial event in which a number of meteors are observed to radiate, or originate, from one point in the night sky.

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Meteoroid

A meteoroid is a small rocky or metallic body in outer space.

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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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Organic compound

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

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Outer space

Outer space, or just space, is the expanse that exists beyond the Earth and between celestial bodies.

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Polycyclic aromatic hydrocarbon

Polycyclic aromatic hydrocarbons (PAHs, also polyaromatic hydrocarbons or polynuclear aromatic hydrocarbons) are hydrocarbons—organic compounds containing only carbon and hydrogen—that are composed of multiple aromatic rings (organic rings in which the electrons are delocalized).

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RNA

Ribonucleic acid (RNA) is a polymeric molecule essential in various biological roles in coding, decoding, regulation, and expression of genes.

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Tektite

Tektites (from Greek τηκτός tēktós, "molten") are gravel-sized bodies composed of black, green, brown, or gray natural glass formed from terrestrial debris ejected during meteorite impacts.

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