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Comet
A comet is a small body in the solar system that orbits the Sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail - both primarily from the effects of solar radiation upon the comet's nucleus, which itself is a minor body composed of rock, dust, and ices.
Note: The above text is excerpted from the Wikipedia article "Comet", which has been released under the GNU Free Documentation License.
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April 24, 2025
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Latest Headlines
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Apr. 24, 2025 — Using the James Webb Space Telescope (JWST), scientists analyzed far-away bodies -- known as Trans-Neptunian Objects (TNOs) -- and found varying ...
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Apr. 21, 2025 — Geologists weigh in on a long-running debate about Mars: Billions of years ago, was the Red Planet warm and wet or cold and ...
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Apr. 18, 2025 — Researchers have developed a new coronagraph that could make it possible to see distant exoplanets obscured by light from their parent ...
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Apr. 16, 2025 — A new study suggests the universe may rotate -- just extremely slowly. The finding could help solve one of astronomy's biggest ...
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