When the Earth froze over, where did life shelter? MIT scientists say one refuge may have been pools of melted ice that ...

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

Every breath we take in contains 21% oxygen, the gas that makes life on Earth possible. Oxygen, in its combined oxide state, ...

Scientists have never directly detected dark matter, but some wonder if one high-energy detection in 2023 could be a rare ...

China's Shijian-21 and Shijian-25 satellites had been moving toward each other in geosynchronous orbit, around 22,236 miles ...

NASA launched two 12-inch gold-plated copper disks filled with the sounds of children's laughter, heartbeats, and bird calls.

Record-high greenhouse gas emissions are set to exhaust the planet’s “carbon budget” within three years, passing another ...

China's commerce ministry said on Thursday that "a certain number" of rare earth export licence applications had been ...

The strength of Earth’s magnetic field and the amount of oxygen in its atmosphere seem to be correlated—and scientists want ...

Forecasters are closely watching sunspot region 4114, which remains Earth-facing and shows signs of magnetic instability.