The asteroid, designated 2024 YR4, jumped to the top of NASA's risk chart, with a slim but measurable chance of striking ...
BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.
The team's latest discoveries, which NASA unveiled on Wednesday (Jan. 29 ... and all of these bioessential elements could have been delivered on asteroids like Bennu in the early solar system ...
YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a non-threat.