“If we’re confused about whether something is an unknown asteroid or a Tesla Roadster, then it starts to cost us money to do things like tracking it or figuring it out.” That’s why better ...

NASA's Lucy spacecraft, on its way to Jupiter's Trojan asteroids, has its next target in its sights: the main belt asteroid 52246 Donaldjohanson. Currently 45 million miles (70 million kilometers) ...

Up until August 2024, the WISE spacecraft was one such observatory. The telescope was repurposed for asteroid and comet tracking after its original mission ended. In the next few years ...

The chances of asteroid 2024 YR4’s odds of colliding with Earth in 2032 have dropped to nearly zero, thanks to new observations of the space rock.

An asteroid nearly the size of a football field now has roughly a 0.004% chance of hitting Earth in about eight years, NASA says — with the space agency saying it "no longer poses a significant ...

Astronomers have been keeping a close eye on an asteroid between 130 and 300 feet long that has a very small chance of crashing into Earth in less than eight years. And as they learn more about ...