With all the sightings of strange objects in the sky, people have been wondering for decades what these things can be. Whether it’s Roswell or Area 51, people have been convinced there have been ...

There are trillions of planets out there. Are any of them sending spaceships our way?

For decades UFOs have captivated the public, even as many scientists saw them as too taboo to investigate. Now, after highly publicized sightings of unidentified objects by Navy pilots, UFOs are ...

This new NOVA investigation looks at the evidence from every angle, marshaling expert opinions from physicists, engineers, cosmologists, and others who are bringing new technologies and heightened ...

If extraterrestrials were visiting Earth, it would be the biggest news event since the Big Bang. So the seemingly endless speculation, obsession and recycling of stories about unexplained objects in ...