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 mission is still in the early stages of its conception, with contracts given recently to firms.

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

The universe contains billions upon billions of stars, countless planets and seemingly endless opportunities for life to ...

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