Watch some of the most unforgettable moments from NCIS: Los Angeles, the high-stakes CBS action drama that follows the Office of Special Projects as they take on dangerous missions across Los Angeles ...

When ET phones home, it could be his last call. Contrary to sci-fi movie depictions, our first contact might not be with a super advanced alien civilization at the height of power. Rather, Ivy League ...

NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter. When you purchase through links on ...

As teens spend less time with their friends in person, scientists are beginning to uncover how isolation may affect the developing “social brain." Here’s what we know—and when parents should be ...