An ominous-looking nebula named NGC 246 lurks in the constellation Cetus about 1,600 light-years away from Earth. It is ...

See asteroid Dimorphous, pre- and post-impact, in this time-lapse of Hubble Space Telescope imagery. The space rock was ...

A new study of dinosaur biodiversity challenges the belief that the megafauna were on their way out 66 million years ago ...

Earth has one true moon, but there are also several asteroids known as quasi-moons that are in orbit with the sun. A newly discovered asteroid, 2025 PN7, is the seventh confirmed quasi-moon that ...

If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...

If an asteroid was heading for a deadly impact with Earth, could we nudge it off course safely without making the situation worse? Yes, thanks to a new system for calculating the perfect spot to smack ...

A newly discovered asteroid just whizzed past Earth, marking the second-closest asteroid flyby on record, astronomers say. The asteroid flew over Antarctica just before 9 p.m. ET on Sept. 30, about ...

Large quantities of water once flowed through the asteroid Ryugu, an indication that asteroids could have brought much more water to Earth than previously thought. The origin of Earth’s water is ...

Scientists are still concerned that asteroid 2024 YR4 could hit the moon in the future One of the solutions suggested is nuking the asteroid to save the moon Scientists say the plan to use nuclear ...

On Sept. 26, 2022, at 7:14 p.m. EDT, NASA smashed a pint-sized spacecraft into an asteroid — and changed the course of both the space rock and planetary defense forever. The purpose of that mission, ...