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.

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

An asteroid becomes a meteorite when it travels to Earth from a nearby orbit or the outer solar system and collides with ...

Even the smallest odds of an impact sound alarming, but scientists’ ability to calculate them is actually good news.

Discovered in December, the near-Earth asteroid known as 2024 YR4 is estimated to be 130 feet to 300 feet across.

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

As an ancient threat endangers both Vikings and dragons alike on the isle of Berk, the friendship between Hiccup, an ...

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 ...

NASA’s NEO Surveyor has passed its critical design review, clearing the way for construction and testing. This infrared ...

NASA is keeping a close watch on three asteroids making near-Earth approaches today. One of them, named 2025 CF, will pass within just 77,200 miles of our planet-roughly one-third ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system. "We identified two large asteroids that show similar spectral features to ...