A “city killer” asteroid experts feared was on a crash course with Earth is now expected to miss the planet — but it still ...

YR4 won't hit Earth, but scientists now estimate a 4% chance it could strike the Moon, possibly affecting space missions.

The asteroid that once had a small chance of striking Earth and now might slam into the moon resembles a spinning hockey puck ...

A massive asteroid, 2024 YR4, initially estimated at 40 meters in diameter, is actually 60 meters wide, posing a more ...

Why do people believe the flat Earth theory and is it even worth debating? Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of Ask a Spaceman and Space ...