A nihilistic alien civilization sounds like one that would simply lose hope, abandon progress, and fade away. But this ...

Stretching across the sun-baked plains of southern Peru, the Nazca Lines have inspired awe, obsession, and wild speculation ...

(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

Star Trek is packed with all sorts of alien, both on the Enterprise and throughout the final frontier, and these are the ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial ...

Alien experts claim powerful extraterrestrial life exists in the universe, which is beyond the control of any government — ...

Rep. Gabe Vasquez spoke out Monday after an internal report found more than four dozen violations of the agency’s standards ...

Debate over alien life resurfaces as Avi Loeb questions humanity, Obama comments on UFOs, and NASA’s Artemis II mission fuels ...

Ahead of President Trump’s highly anticipated trip to China, Xi Jinping’s biographer accentuates the differences—and draws ...

Interest in unidentified aerial phenomena (UAPs) surged in February when Barack Obama stated aliens are "real," though he ...

With Project Hail Mary shattering box office expectations, it's time for Hollywood to adapt these sci-fi novels.