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

Earth's earliest continents may have set the chemical stage for life by regulating boron levels in ancient oceans, a new study in Terra Nova suggests.

The number is increasing, too. This visualization, which is based on Space Force data and excludes debris, suggests that the ...

Astronauts and robotic spacecraft have captured breathtaking photos of Earth from space for decades. See the best images.

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