NASA released a trove of never-before-seen images of the interstellar comet 3I/ATLAS, unveiling new characteristics of the ...

A mysterious object was seen on SpaceX's livestream of its Starship rocket on Monday. Many viewers suggested it was a UFO, ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium ...

If ancient extraterrestrial explorers ever traipsed through Earth's cosmic neighborhood, it's possible they left behind some interstellar litter in their wake. Think of it like the loose hubcaps on ...

Viewers watching SpaceX's live feed of the latest Starship launch claim to have spotted a "city-sized" alien mothership in ...

NASA’s Roman Space Telescope will test powerful new technology that could make faint exoplanets far easier to image directly.

NASA chief Jared Isaacman has said the US space agency holds images of objects it cannot explain, but he stopped short of calling them proof of alien life when he spoke on the Jack Gordon Podcast on ...

An alien weapon has been found on Mars, according to a top UFO researcher. RadarOnline.com can reveal an image taken by NASA's Curiosity rover shows a long, narrow formation protruding from rocky ...

Dragonfly - a nuclear-powered robotic rotorcraft - will fly between locations on Titan and investigate its surface and ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Announcing the release, President Donald Trump said he had directed ...