A physicist has argued that fundamental cosmic constraints make visits from alien civilizations to Earth effectively impossible. Factors such as vast interstellar distances, the speed of light as a ...

Sean Kirkpatrick, a physicist who previously investigated UAP at the Pentagon’s All-domain Anomaly Resolution Office, said Loeb is “not viewed favorably” in the scientific community and lacks national ...

WASHINGTON (AP) — 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 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NORTH BERGEN, New Jersey — The cast of North ...

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national ...