YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see how much of a risk the space rock poses.

It measures 130 to 300 feet across, a pebble compared to the asteroid that killed the dinosaurs, which is estimated to have been six to nine miles in length. On the other hand, on Feb. 15, 2013, an ...

Asteroid headed towards Earth could smash into the Moon, scientists say - Nasa expects chances of Earth collision to be ...

REx mission has an historic opportunity to closely observe the asteroid Apophis and improve our ability to defend against ...

CAPE CANAVERAL, Fla. (AP) — The threat of a newly discovered asteroid has risen slightly in the past few weeks, as the ...

Here's how scientists deflect asteroids after experts reveal exact locations where 'city destroyer' could hit.

An asteroid could potentially crash into Earth in less than eight years. Here's everything to know about asteroid 2024 YR4.

Situation is significant enough to warrant global planetary defence community's attention. Astronomers plan to use James Webb ...

We asked experts at NASA and the Massachusetts Institute of Technology what scientists know about the asteroid that could ...

The Webb telescope is well-suited to identify asteroid 2024 YR4's size. Webb views a type of light we can't see with the ...

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks ...