The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a football field as they try to determine how likely it is to strike Earth in ...

Based on its path, speed, and size, scientists have determined potential impact sites for YR4 in 2024. Impact projections are ...

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world's telescopes ...

Scientists are closely monitoring asteroid 2024 YR4, which has a 2% chance of hitting Earth in 2032. Initial tracking was ...

Dubbed 2024 YR4, the object—somewhere between 40 and 100 meters in size—was spotted on December 27. The asteroid’s closest approach to Earth, it turned out, had been two days earlier ...

Asteroid 2024 YR4, as it's been designated, was flagged by the International Asteroid Warning Network (IAWN) for its potential to impact Earth on 22 December 2032. "This is one of the highest ...

Asteroid 2024 YR4 has a 1.3% chance of impacting Earth in 2032, NASA reports. Astronomers all over the world are watching the asteroid, trying to narrow down its future path. The risk will likely ...

Even so, the object — called asteroid 2024 YR4 — is Earth's biggest known impact threat in 20 years and it's already triggered international planetary-defense planning. What's the threat level?

If asteroid 2024 YR4 were to collide with Earth, scientists estimate that it would release about 8 megatons of energy, which is more than 500 times the energy released by the atomic bomb dropped ...

“But it deserves attention.” First spotted last month by a telescope in Chile, the near-Earth asteroid — designated 2024 YR4 — is estimated to be 130 to 330 feet (40 to 100 ...