In a pair of papers published in 2018 and 2021 in the Journal of Geophysical Research: Planets, planetary scientist Steve ...

Comet Leonard, which last passed by Earth 80,000 years ago, has been dazzling the night sky before Christmas, and there's only a few days left to see the celestial object before it disappears forever.

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage ...

A comet last in the solar system about 50,000 years ago should be visible in the Florida sky with a telescope this week, NASA reports. The comet C/2022 E3 (ZTF), a name that NASA acknowledges is a ...