On March 21, 2021, an object the size of the Empire State Building—traveling at 77,000 miles per hour—passed within 1.25 ...

Potential impactors are most likely to have low velocities and the highest likelihood of hitting Earth during the winter.

“Impact flashes on the moon are very common,” University of Colorado Boulder astrophysical and planetary sciences professor Paul Hayne said. “In fact, they happen more or less every night, and it’s a ...

An asteroid could wipe out humanity, but it's unlikely. Near-misses are more common than impacts, though planetary defence is ...

If an asteroid is on a collision course with the moon, what should humanity do? Try to nudge the space rock out of the way before it strikes? Obliterate it with a nuclear explosion? Such a cosmic ...

A clear look at the discovery of 40,000 near-Earth asteroids, how scientists track them, and the missions working to keep our ...

From its first detection using an instrument designed in part by teams based in the Bay, to follow-up orbit analysis ...

An asteroid named YR4 is on a potential collision course with the moon, with NASA estimating a 4% chance of impact in 2032.