Earth's Dynamic Magnetic Fortress Our magnetosphere plays the role of gatekeeper, repelling unwanted energy that's harmful to ...

The weak spot, known as the South Atlantic Anomaly, was identified in the 19th century and expanded in recent years.

The clip was recorded by NASA astronaut Peggy Whitson while she was on a 7-hour spacewalk with fellow astronaut Shane ...

We all need some space sometimes—but it's harder to find than you might think. How far into our universe do we have to go to ...

Did NASA find another Earth? Scientists look to the sky to find a copy of our planet, and some experts think they may have ...

Think of it this way: only around 10,000 decently sized meteorites slam into Earth per year. Meanwhile, the planet is ...

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...