Scientists find a tailless comet from Earth's early days
The rocky body got kicked to the edge of the Solar System billions of years ago.
Key ingredient of life might have come from comets
Ribose could form in space despite the harsh conditions.
Amateur astronomers caught a Jupiter impact on camera
An asteroid or comet smacked into the gas giant, and there's telescope video to prove it.
Philae mission team says goodbye to the comet lander
We hardly knew you, Philae.
Philae comet lander has likely gone silent for good
A last-gasp attempt at contacting the lander hasn't received a response.
That star's 'alien megastructure' is likely just a swarm of comets
It's tempting to think that an unusual star is enveloped by alien satellites, but the truth is likely far more pedestrian.
Astronomers find pure oxygen leaking from Rosetta's comet
This discovery could revolutionize our understanding of how the solar system came to be.
Lovejoy is the galaxy's booziest comet
WOOOT, SPACE PARTAY!!!
Philae delivered crucial comet data despite its bumpy landing
Rosetta's Philae lander has made a bunch of comet discoveries.