Comets TOP STORY

Afternoon View On A Comet

© ESA

Imhotep

This beautiful landscape feels within arm's reach in this stunning view across the Imhotep region on Comet 67P/ChuryumovGerasimenko.


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Comets TOP STORIES

Exposed Ice on Rosetta's Comet Confirmed as Water

© ESA

Water on comet 67P/ChuryumovGerasimenko

Observations made shortly after Rosetta's arrival at its target comet in 2014 have provided definitive confirmation of the presence of water ice.

Philae Lander: One Year On A Comet

Philae Lander: One Year On A Comet Video in Story

One year since Philae made its historic landing on a comet, mission teams remain hopeful for renewed contact with the lander


First Detection of Molecular Oxygen At A Comet

First Detection of Molecular Oxygen At A Comet

ESA's Rosetta spacecraft has made the first in situ detection of oxygen molecules outgassing from a comet, a surprising observation that suggests they were incorporated into the comet during its formation.


Comet Encke's Tail May Shed Light on Solar Wind Heating

Comet Encke's Tail May Shed Light on Solar Wind Heating

We can't see the wind, but we can learn about it by observing things that are being blown about.


Rosetta's First Peek at Comet 67P's Dark Side

Rosetta's First Peek at Comet 67P's Dark Side

Since its arrival at comet 67P/Churyumov-Gerasimenko, the European Space Agencys Rosetta spacecraft has been surveying the surface and the environment of this curiously shaped body.


Comet Feature Named After Late NASA Scientist Claudia Alexander

Comet Feature Named After Late NASA Scientist Claudia Alexander

Scientists from the ESA's Rosetta mission are honoring their deceased colleague, Claudia Alexander of NASA's Jet Propulsion Laboratory by naming a feature after her on the mission's target, comet 67P/Churyumov-Gerasimenko.


Rosetta Discovers Water/Ice Cycle on Comet 67P

Rosetta Discovers Water/Ice Cycle on Comet 67P

ESA's Rosetta spacecraft has provided evidence for a daily water-ice cycle on and near the surface of comets.


SOHO Discovers its 3,000th Comet

SOHO Discovers its 3,000th Comet

On Sept. 13, 2015, the Solar and Heliospheric Observatory -- a joint project of the European Space Agency and NASA -- discovered its 3,000th comet, cementing its standing as the greatest comet finder of all time.


Philae's Descent on Comet 67P/Churyumov-Gerasimenko: The Director's Cut

Philae's Descent on Comet 67P/Churyumov-Gerasimenko: The Director's Cut Video in Story

On 30 July, the first papers covering the scientific results obtained by Philae on the surface of Comet 67P/Churyumov-Gerasimenko were published in Science magazine.


ESA: The Organic Comet 67P/Churyumov-Gerasimenko

ESA: The Organic Comet 67P/Churyumov-Gerasimenko Video in Story

On 13 August, Comet 67P/Churyumov-Gerasimenko reaches its closest point to the Sun (perihelion) and the Rosetta orbiter will be there to see exactly what happens.


ESA Provides an Overview on the Philae Lander Results

ESA Provides an Overview on the Philae Lander Results

The Rosetta orbiter is continuing its science until the end of the extended Rosetta mission in September 2016. The lander's future is less certain. This film covers some of what we've learnt from Philae about comet 67P/Churyumov-Gerasimenko so far.


Imhotep Mosaic

Imhotep Mosaic

Mosaic of six OSIRIS narrow-angle camera images of the geologically diverse Imhotep region on Comet 67P/ChuryumovGerasimenko.


Rosetta and Its Comet Close In On The Sun

Rosetta and Its Comet Close In On The Sun

Rosetta's investigations of its comet are continuing as the mission teams count down the last month to perihelion the closest point to the Sun along the comet's orbit when the comet's activity is expected to be at its highest.


Philae Contacted and Successfully Executes Commands

Philae Contacted and Successfully Executes Commands

The Philae lander communicated with the Rosetta orbiter again between 19:45 and 20:07 CEST on 9 July 2015 and transmitted measurement data from the COmet Nucleus Sounding Experiment by Radiowave Transmission (CONSERT) instrument.


Active Pits Found on Rosetta's Comet

Active Pits Found on Rosetta's Comet

Some of the dust jets emitted from Rosetta's comet can be traced back to active pits on its surface. They could be the remnants of collapsed cavities.


Exposed Water Ice Detected on Surface of Comet 67P

Using the high-resolution science camera on board ESA's Rosetta spacecraft, scientists have identified more than a hundred patches of water ice a few metres in size on the surface of Comet 67P/Churyumov-Gerasimenko.


Rosetta's Lander Philae Wakes Up from Hibernation

Rosetta's Lander Philae Wakes Up from Hibernation

Rosetta's lander Philae has woken up after seven months in hibernation on the surface of Comet 67P/Churyumov-Gerasimenko.



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