The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other…

Researchers have detected a gamma-ray burst outside of the Milky Way that's unlike any previously observed. There's no satisfying explanation for the mysterious cosmic explosion, but it may be linked…

For the first time, scientists visualized how electrons behave during a chemical reaction, which could help reduce unwanted byproducts in future chemistry.