NASA’s Perseverance rover may have unwittingly captured a glimpse of an interstellar object in the Martian sky. On October 4, 2025, the rover snappedseveral raw images of Mars’ sky, raising the ...

Comet C/2025 R2 (SWAN) will make a close flyby of Earth on Oct. 21. A bright new solar system comet could put on a show in the October night sky as it zooms past Earth. Comet C/2025 R2 (SWAN) was ...

Tiny white dots of stars appear on a black background, with about a dozen larger bright spots with fuzzy edges also visible. A rich collection of galaxies at the heart of the Virgo supercluster of ...

Scientists have long been aware of the massive elliptical galaxy, M87. The galaxy was first observed in the late 18th century by Charles Messier, who cataloged objects in the sky specifically to avoid ...

The Kecksburg UFO incident occurred on December 9, 1965, when a fireball was spotted in the sky and seemed to land in ...