The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

NASA’s Roman Space Telescope could revolutionize the search for alien worlds by discovering around 100,000 exoplanets—far ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet ...

NASA's Nancy Grace Roman Space Telescope is poised to discover approximately 100,000 exoplanets, significantly expanding our ...

Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient ...

NASA's brand-new Nancy Grace Roman Space Telescope is finished ahead of schedule and getting ready for a massive mission to ...

NASA's Apollo 17 crew reported seeing three mysterious dots and sparks that resembled fireworks, according to new files released by the Pentagon.

In mid-November 1969, a trio of NASA astronauts launched to the moon on the Apollo 12 mission and would soon become the second group of humans ever to set foot on the lunar surface. Now, more than ...

Much of the UFO imagery that the Pentagon released last week was new, but we've long known about the odd things that the Apollo astronauts saw near the moon.