NASA has discovered a mysterious interstellar comet entering our solar system. Learn what this strange visitor is and how scientists are tracking it now.

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

Based on the comet's brightness and current distance — it's located just inside Jupiter's orbit — scientists estimate its ...

Folks, it's official: the object that astronomers recently spotted blowing through the outer solar system came from ...

This week, a 125,000-year-old Neandertal “fat factory” reveals that they gorged on energy-packed bone grease, a new study has ...

Astronomers discovered 3I/ATLAS, an interstellar object moving at over 60 km/s towards the Sun. It's the third known object ...