Although it won’t hit Earth, an asteroid once labeled a “city killer” is now back in the spotlight — this time, because it might hit the moon.

To keep solar power stations from getting lazy, Sandia National Laboratories scientist John Sandusky is looking to give ...

NASA has confirmed that asteroid 2025 ME92 is on course. The rock is about 95 feet wide and is travelling fast.

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...