Trump has talked about UFOs over the years, mixing skepticism, curiosity and hints about what he’s been told.

Barack Obama appeared to confirm the existence of extraterrestrials; Nevadans have made more than 1,800 UFO reports since 1947.

Area 51 is a U.S. Air Force Base in Nevada, and has long been the subject of conspiracy theories stemming from the belief that the U.S. government keeps evidence of alien contact on site, including spacecraft and specimens.

The belief that aliens have visited Earth and may even live among us is not a new concept; it has persisted for centuries. But now this notion is gaining unprecedented traction in the U.S. and abroad, raising concerns about its potential impact on society.

Add Yahoo as a preferred source to see more of our stories on Google. Image credit: Netflix The Pentagon has addressed the topic of UFOs and aliens again, and it’s the same line we’ve heard for decades. The government has been treating the subject with ...