Consider the dramatic visual and gravitational consequences if a large asteroid struck and fractured the Moon.

Look to the eastern sky, and a clear horizon will show you this unusual, grinning planet alignment thanks to the crescent ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

The government will freeze $2 billion in funds because the university refused to comply with its demands. Harvard leaders believed saying no was worth the risk. 7 min read Trump Threatens Harvard ...