The sun's activity has a profound impact on satellites, humans in space and technology on Earth.

In the battle against climate change, a San Francisco nonprofit has developed a cutting-edge technology that uses olivine sand to remove carbon dioxide from the atmosphere.

Scientists studying the zone between Earth’s atmosphere and space spotted unusual X- and C-shaped features that could thwart signals that keep our planet running smoothly.

Researchers with the U.S. military's Defense Advanced Research Projects Agency (DARPA) have successfully used Earth's atmosphere as a sensor to detect a distant disturbance.

This proof-of-concept device has been designed by a team at Harvard’s John A. Paulson School of Engineering and Applied Sciences.

SpaceX's Starlink satellites now make up 40% of reentering satellite debris. But is Elon Musk's space company the worst polluter of Earth's upper atmosphere?

Miles of air cover Earth. The boundary between Earth's atmosphere and outer space, the Kármán line, is about 62 miles (100 kilometers) above the planet's surface.