Scientists have seemingly settled long-standing arguments about whether the components of Earth originated from the inner or ...

Earth Day began as a protest in 1970, but its meaning has evolved. Here’s how it changed - and what it represents today.

The recent Artemis II mission gave four astronauts a one-of-a-kind perspective on Earth, and their photos show just how small ...

NASA is inviting the public to see their names spelled out in satellite imagery through a new interactive feature that ...

See stunning photos of Earth taken from space by astronauts and robotic spacecraft, celebrating our home planet on Earth Day.

Millions of people around the world will pause, at least for a moment, to mark Earth Day. The annual event is Wednesday.

A nearby Earth-sized planet offers a rare chance to study how atmospheres survive or disappear on rocky worlds.

Earth Day, which began in 1970, is celebrated each year on April 22.

Apophis, a massive near-Earth asteroid, is set to pass just 20,000 miles from Earth on April 13, 2029. The flyby, described ...