Millions of years ago, Earth was in a state of “deep freeze,” too cold to sustain life. As time went by, greenhouse gases like carbon dioxide began emitting more vigorously than ever, eventually ...

The Sentinel-6B is the second of two satellites in a $1 billion program to monitor sea levels over a full decade.

It's hard to remember that while we can see the world at any time from our smartphones, it wasn't all that long ago that privilege was only available to governments and researchers. Before Google ...

Satellite imagery collected for Google Earth has revealed some strange things in the past—from phantom islands to mysterious shipwrecks—but zooming in on a rural area in northern Texas recently showed ...