It's too soon to know whether the object is a rocky asteroid or an icy comet, or how big and what shape it is.

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Exoplanet HIP 67522 b, fluffed up to the size of Jupiter, circles so close to its star that it’s triggering violent flares — ...

Pons-Brooks and Jupiter were seen by NASA's Solar TErrestrial Relations Observatory-A (STEREO-A). Credit: Space.com | NASA STEREO | edited by Steve Spaleta ...

Astronomers have discovered an exoplanet with a tail, like a gigantic comet. The planet, known as WASP-69b, is slowly evaporating in the radiation of its host star.

The revised D/H value means that "all Jupiter Family Comets that we have been able to measure have a D/H closer to the Earth's water D/H," Mandt said. This implies that comets played a major ...

Jupiter-family comets, named for their gravitational ties to Jupiter, are icy relics of the Kuiper Belt, a region beyond Neptune.

Comets, on the other hand, which are made of ice, have yielded mixed results. Jupiter-family comets, named for their gravitational ties to Jupiter, are icy relics of the Kuiper Belt, a region ...

The Sun's powerful tidal forces then ripped off pieces off the comet—akin to what happened to the comet Shoemaker-Levy 9 when it crashed into Jupiter in 1994—and one of the larger fragments of ...