Researchers recently detected an "ultra-high-energy" cosmic ray, which is the most powerful since the famous "Oh My God" particle was detected in 1991. They have no idea where it came from. When you ...

New Yorkers were wowed on Wednesday by a sunset that was perfectly framed by skyscrapers, thanks to an urban astronomical phenomenon known as Manhattanhenge. The same planetary tilt that determines ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Venus (L) and Jupiter (R) rise together in a rare ...