A newly discovered house-size asteroid is set to make a close, yet harmless approach to Earth today (May 21), passing within one-third of the Earth-moon distance.

An curved arrow pointing right. If there's a giant asteroid expected to hit Earth, NASA and FEMA are responsible for getting the news out. These two agencies have performed multiple doomsday test ...

An asteroid doesn't need to be massive to cause serious damage. The Chicxulub asteroid that wiped out the dinosaurs is estimated to have been about 6 miles in diameter. That may sound like a ...

"As more observations of the asteroid are made, the uncertainty region will continue to shrink and the impact probability may continue to rise," the ESA wrote. "If we reach a point at which Earth ...

CAPE CANAVERAL, Fla. (AP) — NASA's Lucy spacecraft has beamed back pictures from its latest asteroid flyby, revealing a long, lumpy, odd-shaped space rock. The space agency released the images ...

The sample collection process gave researchers some hints about why that is. “At some point the asteroid must have been closer to the Sun that it is now,” Byrne wrote. “That would explain ...

The asteroid is still only ranked at 3 on the 11-point Torino Impact Hazard scale, meaning that it's big enough — and will pass close enough — to warrant our attention, but is by no means a ...

Initial analysis of the imagery suggests that the Donaldjohanson asteroid is about 5 miles (8 km) long and 2 miles (3.5 km) wide at the widest point — larger than originally estimated.

A NASA spacecraft recently got an up-close look at a strange peanut-shaped space rock floating through the cosmos in the main asteroid belt ... wide at its widest point – is believed to be ...

This asteroid is bigger than scientists anticipated, about 5 miles (8 kilometers) long and 2 miles (3.5 kilometers) wide at its widest point — resembling an irregular bowling pin. It’s so long ...