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Comet Makes a Pit Stop Near Jupiter’s Asteroids

2 Mar 2021, 13:28 UTC
Comet Makes a Pit Stop Near Jupiter’s Asteroids
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NASA’s Hubble Space Telescope snapped this image of the young comet P/2019 LD2 as it orbits near Jupiter’s captured ancient asteroids, which are called Trojans. The Hubble view reveals a 400,000-mile-long tail of dust and gas flowing from the wayward comet’s bright solid nucleus. (Credit: NASA/ESA/J. Olmsted/STScI)

PASADENA, Calif. (NASA PR) — For the first time, a wayward comet-like object has been spotted near the family of ancient asteroids.

After traveling several billion miles toward the Sun, a wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way. The object has settled near a family of captured ancient asteroids, called Trojans, that are orbiting the Sun alongside Jupiter. This is the first time a comet-like object has been spotted near the Trojan population.

The unexpected visitor belongs to a class of icy bodies found in space between Jupiter and Neptune. Called Centaurs, they become active for the first time when heated as they approach the Sun, and dynamically transition into becoming more comet-like.

Visible-light snapshots by NASA’s Hubble Space Telescope reveal that the vagabond object shows signs of comet activity, such as a tail, outgassing in the form of jets, and an ...

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