asteroid, Earth

A near-Earth asteroid as wide as the Statue of Liberty is tall could strike Earth on Dec.22, 2032, alerting planetary defense ...
NASA and ESA are monitoring asteroid 2024 YR4, with an estimated size of up to 328 feet and a 1.2% chance of impacting Earth.
YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a ...