Our new results provide the strongest evidence yet that at least some Halley-type comets carried water with the same isotopic ...

While observing the Halley-type comet 12P/Pons-Brooks with ALMA and NASA's Infrared Telescope Facility, researchers ...

Pieces of debris coming from a famous comet are expected to appear fast as they leave glowing trails across the sky early Sunday morning.

Debris from Halley's Comet will streak across the sky overnight for the annual Eta Aquarid meteor shower.

A celestial spectacle from Halley's Comet will illuminate the night sky this week. Here's how to watch and when to look up.