For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...

Why are scientists taking unidentified aerial phenomena seriously? Because every answer matters for science, national security, and the people whose lives are changed by these experiences.

After spending several years offline, James Franco is back on social media, but his recent posts have raised eyebrows over ...

Authorities, though, have a much more mundane explanation: space junk. The Australian Space Agency said the spheres are ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.