YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...

If 2024 YR4 disappears from view before space agencies can rule out any chance of impact, the space rock will remain on the risk list until it is back in view in June 2028. Current estimates of the ...

Chances an asteroid may hit Earth in 2032 have again risen, though the risk remains tiny, astronomers say. Here's what to know about 2024 YR4.

For an hour, HERA flew as close as 5,600 kilometers from the Martian surface, at a speed of 33,480 kilometers an hour. It ...

Space agencies have systems in place to spot, track, and forecast the future orbits of potentially hazardous asteroids.

Although the percentage of impact is still relatively low — a fluctuating 1%, depending on the day — astronomers won’t have ...

Chances an asteroid may hit Earth in 2032 dropped to near zero, astronomers say. Here's what to know about 2024 YR4.

NASA has said Earth will likely be spared by a deadly Big Ben-sized asteroid and predicts it could smash into the Moon instead in a dramatic collision. The space agency feared the chance of a ...

YR4: everything to know about the potential "city killer" space rock that has a 2.3% chance of striking Earth on Dec. 22, 2032.

An asteroid between about 130 and 300 ft. (40 and 90 meters) in diameter has been given a 2.3% chance of it hitting Earth on Dec. 22, 2032.

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks can still be threatening, as the surprise 56-foot (17-meter) rock that ...

The chances that an asteroid hits Earth in 2032 are now at their highest since the object was first discovered, according to NASA.