A strong northern lights display could be blocked by clouds and snow in Michigan Tuesday night, Jan. 20. Where you might see it.
When the six tiny spacecraft of NASA's SunRISE (Sun Radio Interferometer Space Experiment) mission settle into their orbits ...
Watch this one-week time-lapse of the coronal hole in the Sun's atmosphere from NASA's Solar Dynamics Observatory. Amazing ...
A light, 4.9-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey.