Latest about Comets
Interstellar Object 'Oumuamua Could Be a Comet in Disguise
While it looks like an asteroid, the first interstellar object spotted passing through the solar system, called 'Oumuamua, may be more like a comet in disguise.
Comet Likely Didn't Cause Bizarre 'Wow!' Signal (But Aliens Might Have)
A source of mysterious radio signals could be from a passing comet, but astronomers are skeptical.
Comet 67P Produces Its Own Oxygen in Deep Space
The finding shows that oxygen can be generated in space without the need for life, and could influence how researchers search for signs of life on exoplanets.
Look Up Friday! Green Comet and Snow Moon Eclipse Team Up for Skywatchers
Skywatchers this weekend will get two special, subtle treats: a penumbral lunar eclipse on Friday (Feb. 10) and a strange green comet reaching its peak viewing time the following morning.
A Strange Green Comet Is Heading Our Way
Comet 45P/Honda-Mrkos-Pajdusakova, returning to the inner solar system after more than five years, will be visible this week with binoculars or a small telescope.
Hubble Spies Exocomets Diving into Young Star
NASA's Hubble Space Telescope has detected several comets diving toward a young star about 95 light-years from Earth.
'New Year's Eve Comet' and More: Three Flybys Will Kick Off 2017 New Year
The "New Years' Eve Comet" that's been streaking across the sky this December isn't the only otherworldly visitor ringing in the New Year in Earth's neighborhood.
Sounding the Alarm: Comets Pose Threat to Earth, Too
If your death-from-above musings focus solely on asteroids, you need to broaden your mind. Comets pose a serious risk as well, researchers say.
