Oscar-winning filmmaker Steven Spielberg recently said that he believes aliens from outer space have “absolutely” been on Earth.

With 'Disclosure Day,' the director returns to a longtime preoccupation. Two Times staffers explore his ongoing fascination with extraterrestrials.

Many of the officials claim they cannot share more evidence for or details about the claimed alien encounters because they remain classified. The film's most explosive allegation, that an alien species actually made contact with the government, is ...

Donald Trump's declassified UFO files and the documentary Sleeping Dog reignite the debate on extraterrestrial life, yet officials maintain no evidence confirms alien existence.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.