Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

called outer dark comets, have similar characteristics to Jupiter-family comets: they have highly eccentric (or elliptical) orbits and are on the larger side, hundreds of meters or more across.

Water. All life on Earth requires it in some way or another, and it's hard to miss that roughly 70% of our planet's surface is covered in the stuff. Thus, understanding where Earth's water came ...

NASA shares images of comet C/2024 G3 (ATLAS) near the sun and stunning photos from Jupiter and Mars missions.

Researchers believe these comets originate from the asteroid belt between Mars and Jupiter. Their behavior raises questions about their composition, particularly their potential to harbor ...