The environments in space habitats and on the Earth are both closed-loop systems, only on vastly different scales.

The sun has unleashed its most powerful solar flare in 7 years, following another supercharged explosion earlier in the week.

Robin George Andrews, author of "How to Kill an Asteroid," joins The Excerpt to discuss how scientists are working to ...

Planetary rings don’t last forever, although they do exist for millions of years. The evidence for Earth’s possible ring is ...

The Planetary Health Check is a key monitor of earth's vital signs—and will guide action for a more sustainable world.

Researchers created a seismic map of Earth's interior beneath the southeastern Pacific Ocean and discovered an ancient slab ...

Although free for nearly a year, Aviva Siegel, 63, still feels trapped knowing her husband, Israeli-American Keith Samuel ...

The storm should arrive today or tomorrow, and could bring with it some brilliant aurorae.

A second moon has officially entered Earth’s orbit—sort of. Although it’s being called a “mini-moon,” it’s actually an ...

This alert comes as two coronal mass ejections (CMEs) are expected to make their way to Earth this weekend. A geomagnetic ...

D3Publisher and Sandlot's Earth Defense Force 6 removes a very big, albeit widely criticized, requirement for the game's ...

Earth’s bounty continues to have its farmer’s market, selling plants, treats and sweets, and even natural soaps.