YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a ...
The asteroid, designated 2024 YR4, jumped to the top of NASA's risk chart, with a slim but measurable chance of striking ...
Scientists have reevaluated the catastrophic impact of the Chicxulub asteroid that struck 66 million years ago, revising the estimated sulfur release and its effects on the Earth's climate. This new ...