comet
A comet is a small celestial body that orbits the Sun, made up of ice, dust, and rocky material. When it gets close to the Sun, the heat causes the ice to vaporize, creating a glowing coma (a fuzzy envelope) around the nucleus and often a spectacular tail that points away from the Sun. Comets originate mostly from two regions: the Kuiper Belt, just beyond Neptune, and the Oort Cloud, a distant spherical shell surrounding the solar system. Their orbits can be short-term (lasting a few years) or long-term (taking thousands of years to complete).
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A comet is a small celestial body made of ice, dust, and rocky material that orbits the Sun. When a comet approaches the Sun, the heat causes its ice to vaporize, creating a glowing coma (a cloud of gas and dust) around the nucleus and often forming a tail that points away from the Sun due to solar wind. Comets can be seen from Earth, sometimes appearing as bright objects in the night sky. Their orbits can be highly elliptical, taking them far into the outer solar system before returning close to the Sun.