3I/ATLAS interstellar comet or alien spacecraft? This question gained attention after NASA released new images of comet 3I/ATLAS on 18 December. The images were captured by the Europa Clipper ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Illustration by Thomas Levinson/The Daily Beast/Getty Between 1957 and 1968, scientists decided to try their hand at ...

Mysterious space object was possible alien probe A mysterious space object spotted by astronomers last fall might have been an alien probe, according to a new paper by Harvard researchers.

The plot of the movie Independence Day could soon become reality—as early as this November. According to Harvard astronomer Avi Loeb, a 20-kilometer-wide unidentified space object exhibits some ...

The mysterious, elongated object named Oumuamua that hurtled past Earth last year could have been an alien spacecraft, according to astronomers from Harvard University. Oumuamua—or “messenger from ...

Harvard astrophysicist Avi Loeb claims humanity missed a historic chance to find alien life on interstellar object 3I/ATLAS, warning it may have been a spacecraft on a seeding mission.

Five years ago a very strange object—maybe a thousand feet long, oblong, shiny and fast—streaked across space, tens of millions of miles from Earth. Its course and speed indicated it had come from ...

An alien visitor passing through our solar system made its closest approach to Mars earlier this month, and two European robotic spacecraft orbiting the red planet turned to take a look. 3I/ATLAS is ...

The audio version of this article is generated by AI-based technology. Mispronunciations can occur. We are working with our partners to continually review and improve the results. Antennas of the ...

U.S. intelligence officials found no evidence that unidentified aerial phenomena observed by Navy aviators in recent years were alien spacecraft, but the sightings remain unexplained in a highly ...