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 ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids. NASA has a network of telescopes used to track near-Earth asteroids ...

The risk of impact is likely to drop to zero as observations of Asteroid 2024 YR4 continue.

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

Asteroid 2024 YR4 has been a source of consternation because it carries an uncommonly high risk of colliding into Earth. It's the most hazardous space rock detected since astronomers first ...

If this asteroid follows the pattern of other near-Earth asteroids after their discovery, the chances of impact will rise and then fall, according to the agency. For example, the asteroid Apophis ...

The closest of the asteroids to us—estimated to be about the size of a car—is whizzing through space at 27,358 miles per hour.

ATLANTA — The chance of Asteroid 2024 YR4 hitting Earth has doubled, now sitting at 2.3 percent. The headlines alone can make one nervous. So, is it something to be concerned about?

“The object had a close approach with Earth,” which made it bright enough to be detected in surveys for asteroids, according to the Center for Near Earth Object Studies. Observations and data ...