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

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

When Comet 3I/ATLAS entered our solar system last year—only the third known interstellar object to do so—astronomers took notice. When astronomers first discovered 3I/ATLAS in July 2025, the icy ...

Fresh allegations that US intelligence agencies may be secretly holding recovered alien technology have revived one of Washington's most persistent debates, after a prominent UFO whistleblower claimed ...