Could spherical metallic fragments be from a nuclear test?

You’re not allowed to visit the part of Nevada known as Area 51. That’s because it’s a top-secret government facility. But the secrecy has to do with spy planes, not space aliens.

All who testified before a congressional subcommittee claimed that UFOs pose a threat to national security, though there’s still no public evidence that UFOs are extraterrestrial.

Three Indigenous studies scholars draw from colonial histories and explain why listening for alien life can have ethical ramifications.

While UFO videos might seem compelling, they’re rarely backed up with evidence. A sociologist explains why claims of alien life gain traction through both social and mass media every few years.

The accumulated radio emission from mobile phones on Earth is beginning to become quite significant.

Can artificial intelligence transform the search for alien intelligence?

There may be ways to check if our universe is just simulated entertainment for an advanced, alien species.