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

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

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

The $10 billion orbiting observatory will give astronomers a better sense of the near-Earth asteroid 2024 YR4's size and ...

The asteroid, called 2024 YR4, is roughly 130 to 300 feet across. It was first reported on Dec. 27, 2024, by the NASA-funded ...

Here are today's general risks from asteroids or comets both tiny and very large. Importantly, even relatively small rocks ...

The Webb telescope is well-suited to identify asteroid 2024 YR4's size. Webb views a type of light we can't see with the ...

There is an estimated 2.3% chance that the 2024 YR4 asteroid is heading our way. Here's everything you need to know about the ...

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 ...

Where things stand: The chances of the asteroid hitting Earth currently stand at 2.1%, or about 1 in 47, and could fall to ...

Scientists across the world, including some in Arizona, are keeping an eye on an asteroid that has a very slim chance of ...