Observations from NASA's Webb telescope have revealed detailed chemical fingerprints from catastrophic, planet-shattering ...

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

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

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

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

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

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 ...

A NASA mars rover image has sparked wild claims from a UFO researcher that it shows an unexploded alien missile on Mars. NASA - by Dr. Carol Stoker, NASA Ames Research Center, Public Domain, via ...

The upcoming Habitable Worlds Observatory should be able to spot the glint of water on habitable planets, and maybe more ...

A striking Martian landscape filled with coral-like patterns is offering scientists a new window into the planet’s distant ...

A mysterious tripod-like object captured by NASA's Curiosity rover on Mars has sparked debate about extraterrestrial life, though experts suggest it may be a camera artefact.

If ancient extraterrestrial explorers ever traipsed through Earth's cosmic neighborhood, it's possible they left behind some ...