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.

China has begun recruiting for a planetary defense force after risk assessments determined that an asteroid could conceivably ...

This stunning volcano footage is just a glimpse of nature’s power—imagine what a city-killing asteroid could do if it struck ...

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

The odds that asteroid 2024 YR4 could hit Earth in 2032 recently spiked from a little more than 1% to 2.3%, but astronomers say not to fret.

YR4 is circling Earth and NASA predicts it could strike the planet in 2032. Here's what to know about the asteroid headed toward Earth.

In 2021, NASA gave the all-clear to another potentially worrisome asteroid, Apophis, after new telescope observations ruled ...

Planetary Society Chief Scientist Bruce Betts notes while counterintuitive, the odds of impact go up before they drop to zero.

YR4 has a roughly 2 percent chance of hitting Earth in 2032, and “is large enough to cause localized damage,” NASA says.

"An asteroid this size impacts Earth on average every few thousand years and could cause severe damage to a local region," ...

That prompted Kimmel to quip, “Does he have any self-awareness at all? The character of Biff in Back to the Future is based on him and that was 30 years before he became president.” Back to the Future ...

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