“What keeps me up at night is the asteroids we don’t know about," said NASA's planetary defense chief.

Scientists Just Recorded a First-of-Its-Kind Solar Event, With Real Impacts on Earth ...

New potential climate crisis just dropped.

"We don’t know where they are,” said NASA’s planetary defense officer Kelly Fast at the AAAS conference in Arizona this week.

The object is hurtling towards the Earth at a zippy 12,616 miles per hour, according to data from the space agency.

Rivers are shrinking and aquifers are falling, raising fears of “water bankruptcy” as billions experience increasing water ...

Scientists say warming is increasing faster than at any time in at least 3 million years. There is no guide for what comes ...

Recent advances have increased the number of bacteria, protists, fungi, and insects are known to science, making it difficult ...

Gravity feels reliable—stable and consistent enough to count on. But reality is far stranger than our intuition. In truth, the strength of gravity varies over Earth's surface. And it is weakest ...

For weeks now, social media has been buzzing with claims that Earth’s “heartbeat” is surging, and that those spikes are ...