A triangular UFO captured on infrared over Area 51 has gone viral, starting alien theories and questions about secret military tech.

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...

The interstellar object known as 3I/ATLAS is stirring up a whirlwind of speculation as it nears Earth, with theories ranging from it being a natural comet to an alien spaceship. This debate has been ...

Did 3I-carus fly too close to the Sun? Interstellar comet 3I/ATLAS is losing an insane amount of mass after making its closest pass of the sun last month — a phenomenon known as perihelion — prompting ...

Scientists in Boulder are using existing NASA spacecraft to track a rare interstellar comet called 31/ATLAS as it travels through Earth’s solar system. Comet 3I/ATLAS was first observed on July 1 and ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Jessica Mendoza: Has the United States government ever made contact with UFOs?

Add Yahoo as a preferred source to see more of our stories on Google. ZURICH, Jan 11 (Reuters) - Best-selling Swiss author Erich von Daeniken, who built a lucrative career on his argument, rubbished ...

For decades different discoveries have been linked to a single possible spacecraft of extraterrestrial origin. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

The History Channel series returns January 15 with "Skulls of the Gods," examining whether these archaeological finds have ...