Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian civilizations after sharing footage that appeared to depict a “three-sided pyramid” on ...

Astronaut Don Pettit recently shared a photo of a tentacled purple object that set social media ablaze. But this is far from an extraterrestrial threat; it’s actually an earthly treat. The “alien” is ...

NASA's most eye-catching hints of alien life on Mars and a distant exoplanet left headlines breathless in 2025, but a major new survey of hundreds of astrobiologists suggests most experts do not yet ...