Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

These December 2025 observations by NASA's SPHEREx show the infrared light emitted by the dust, water, organic molecules, and carbon dioxide contained within comet 3I/ATLAS's coma during the mission's ...

Space scientists have released a new image of the enigmatic space rock that traveled through our solar system. Researchers revealed the photograph shows the interstellar Comet 3I/ATLAS - speculated to ...

The mysterious space rock that passed through our solar system grew significantly brighter as it left, according to scientists. Researchers say Comet 3I/ATLAS, suggested to be a hostile alien ...

Landmark UFO documents smuggled out of Russia 30 years ago — and just publicly revealed — show the Soviets investigated thousands of reports of extraterrestrial craft and encounters with aliens.