When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a 3-megaton weapon designed to bypass American radar.

Is the truth really out there?

While speaking to reporters on Air Force One, Donald Trump called Obama's recent comments about aliens a breach of 'classified information'.

President Donald Trump took the podium on Tuesday for his first official State of the Union address of his second term, touting the nation's economy and calling America "the hotte ...

Leading up to President Trump’s State of the Union address Tuesday night, a speech intended to celebrate 250 years — a quarter-millennium — of American success, there hadn’t been this much ...

As President Trump delivered his State of the Union address, reporters from across NPR's newsroom, are fact checking his speech and offer context.

In the spring of 1967, a series of unusual sightings began to grip the ...

Many in Ukraine assume that the alerts are automated. A rare look inside an emergency-response center reveals the specialists ...

Given the range of possibilities it affords, AirSnitch gives attackers capabilities that haven’t been possible with other ...

U.S. Secret Service said an armed man was shot and killed after entering the secure perimeter of Mar-a-Lago, President Donald ...

A viral Obama podcast answer about aliens prompted Trump to accuse him of revealing secrets and promise to release UFO files ...

After more than a year of his chaotic second term, President Donald Trump got a prime time chance to convince Americans the state of the union is strong. CNN annotated Trump’s speech with context and ...