A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks posed by UFOs ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

While this is technically a teaser trailer, it offers nearly three minutes of footage that set the stage for the star-bound ...