Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

Australia's space agency said there's a completely rational, albeit cosmic, explanation behind the mysterious orbs that ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Each question in the ABC 50/50 quiz has only two options: one is right; the other is wrong. But there's a catch.

"My father did not deserve this." ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

Steven Spielberg’s credulity makes his latest alien contact film, Disclosure Day, mawkish and old-fashioned rather than ...

Does anywhere in the country better represent this era of the American experiment than a self-governing tech-company town ...

Baba Vanga's alleged 2026 predictions, including a US-Iran war, lack verifiable evidence. Her name is often misused to fit ...

NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

Researchers at Cornell University’s Carl Sagan Institute have screened more than 6,000 known exoplanets and identified 45 ...