Mystery of where Earth's water came from deepens: Comet water is different
The mystery of where Earth's water came from got murkier Wednesday when some astronomers essentially eliminated one of the chief suspects: comets.
Hubble Space Telescope spots Mars-bound comet sprout multiple jets
(Phys.org) —NASA released Thursday an image of a comet that, on Oct. 19, will pass within 84,000 miles of Mars—less than half the distance between Earth and our moon.
Dust from a comet has been discovered for the first time on the Earth's surface
Prospects for Q1 PanSTARRS & G2 MASTER comets
Did you catch the performance of Comet C/2014 Q2 Lovejoy earlier this year? Every year provides a few sure bets and surprises when it comes to binocular comets, and while we may still be long overdue for ...
Comet probe Rosetta detects the 'most wanted molecule'
ESA's Rosetta spacecraft has made the first measurement of molecular nitrogen at a comet, providing clues about the temperature environment in which Comet 67P/Churyumov-Gerasimenko formed.
Rosetta space probe takes sharp, close-up images of comet
The European Space Agency says high-resolution images the Rosetta space probe took during a swoop close to a comet it's been tracking for months show boulders on the comet's surface as well as "stunning details ...
Comet Siding Spring whizzes past Mars (Update)
A comet the size of a small mountain and about as solid as a pile of talcum powder whizzed past Mars on Sunday, dazzling space enthusiasts with the once-in-a-million-years encounter.
Deep space 'snowball' nears close shave with Mars
A comet the size of a small mountain is about to skim past Mars, and NASA hopes its spacecraft will be able to photograph the once-in-a-million-years encounter.
OSIRIS catches glimpse of Rosetta's shadow
Several days after Rosetta's close flyby of comet 67P/Churyumov-Gerasimenko on 14 February 2015, images taken on this day by OSIRIS, the scientific imaging system on board, have now been downlinked to Earth. ...
Once in million years: Comet buzzing Mars on Sun
(AP)—The heavens are hosting an event this weekend that occurs once in a million years or so.
See one of the year's best meteor showers, thanks to Halley's comet
As Earth orbits the sun, it continually ploughs through dust and debris left behind by passing comets and asteroids. On any night of the year, a keen-eyed observer might see five, or even ten, meteors (shooting ...
Philae lander on comet may communicate again
European space scientists are hoping that they succeeded in maneuvering comet lander Philae into the sun and that it will resume communicating Saturday with recharged batteries.
Space agency says Philae completes primary mission
The pioneering lander Philae completed its primary mission of exploring the comet's surface and returned plenty of data before depleted batteries forced it to go silent, the European Space Agency said Saturday.
No signals heard from comet lander Saturday
The European Space Agency received no signals from the Philae lander Saturday morning during a scheduled effort to establish communication, the mission chief said.