Earth

Moonrise from aboard the International Space Station, August 3, 2017.

What happened to the moon’s magnetic field?

Science

Unlike Earth, the moon doesn’t have a magnetic field — but it did billions of years ago. What happened?

A composite image of a partial (left) and total (right) solar eclipse, taken in March 2015.

What you need to know about this month’s total solar eclipse

Science
Hazenite

Evidence that we are in the Age of Man: Scientists catalog more human-made minerals

Science
Plate tectonics illustration.

Before plate tectonics, the Earth may have been covered by one giant shell

Science
The moonset behind Earth, as viewed from the International Space Station.

Some of the oxygen on the moon used to be on planet Earth

Science