It's still one of the coolest things I ever saw. I was in the U.S. Air Force in the 90s, and November 1998 saw me deployed to ...

Comet 67P was headed toward the inner solar system during the Rosetta mission ... Rosetta found lots of organic material and ...

The cryovolcanic "centaur" comet 29P/Schwassmann-Wachmann has erupted four times in less than 48 hours, becoming unusually ...

The annual Leonids meteor shower is due to peak next week, hopefully giving stargazers a treat to brighten up the dark winter ...

Many comets visit the solar system fairly often, at least on a cosmic timescale. Halley's Comet, for instance, whizzes past ...