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

As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.

In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

YR4 has a very small chance of striking Earth when its orbit briefly intersects our planet's in December 2032.

Although the Earth’s been decidedly blue for 600 million years, rising populations of phytoplankton caused by rising ...

The chances of Asteroid 2024 YR4 striking Earth have increased. Here's what that means, and where the potential impact zone ...

For example, Jupiter is the most massive planet in our solar system. It’s so big, it could swallow 1,000 Earths. So it ...

YR4 has a 2% chance of hitting Earth in 2032. Astronomers are tracking it to refine estimates of its size and orbit to see ...

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

The risk that an increasingly ominous asteroid dubbed 2024 YR4 will crash into Earth in seven years now exceeds the the ...

Another night of observations revealed there is little to fear from the football-field-sized Asteroid 2024 YR4.