Asteroid 2024 YR4 will not hit Earth, but it has forced planetary defense experts to confront a different kind of worst case: ...

With a 4% chance of hitting the moon in 2032, an asteroid named YR4’s potential collision course is being monitored by NASA.

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

Asteroid 2024 YR4 has popped up on the news again, offering both peril and opportunities, A few months ago, NASA noted that 2024 YR4 had a 3.1 percent chance of hitting the Earth in 2032. Since the ...

Asteroid 2024 YR4: NASA James Webb Space Telescope recent observations reveal the potential that asteroid 2024 YR4 could be a small yet growing risk of collision, despite being no threat to the Moon.

Because it's big enough to be deemed a "city killer," asteroid 2024 YR4 became a source of alarm due to the uncommonly high risk it had of colliding with Earth on Dec. 22, 2032. While Earth may no ...