The asteroid that exploded over Chelyabinsk injured around 1,500 people, damaged thousands of buildings, and exposed an ...

From high-speed battering rams to gravity tractors, the technology exists to protect the planet. The question is whether humanity will act in time — and in concert.

NASA has discovered a new asteroid, 2024 YR4, which has the highest impact probability on record, with a 1 in 25,000 chance of hitting Earth and a 1.7% chance of impacting the Moon as of February 24, ...