Astronomers will be keeping an eye on Comet C/2021 A1 (Leonard), discovered Jan 3, 2021. It could be the brightest comet of the year as it approaches in late December 2021. We could all use something ...

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.

Every so often, the Kuiper Belt and Oort Cloud throw galactic snowballs made up of ice, dust and rocks our way: 4.6-billion-year-old leftovers from the formation of the solar system. These ...