Comets TOP STORY

Comet 67P on 15 April 2015

© ESA

Comet 67P

This single frame Rosetta navigation camera image of Comet 67P/Churyumov-Gerasimenko was taken on 15 April 2015 from a distance of 170 km from the comet center.


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Rosetta and Philae Find Comet 67P Is Not Magnetized

© ESA

Looking For A Magnetic Field

Studying the properties of a comet can provide clues to the role that magnetic fields played in the formation of solar system bodies almost 4.6 billion years ago.

NavCam mosaic of Comet 67P

NavCam mosaic of Comet 67P

This two-image mosaic creates a stunning scene of the Imhotep region on Comet 67P/Churyumov-Gerasimenko as seen from a distance of 19.9 km from the comet centre on 28 March 2015.


Rosetta's OSIRIS Detects Hints of Ice in Comet 67P's Neck

Rosetta's OSIRIS Detects Hints of Ice in Comet 67P's Neck

The Hapi region on the neck of Rosetta's comet 67P/Churyumov-Gerasimenko reflects red light less effectively than most other regions on the comet. It thus appears slightly bluish.


OSIRIS Catches Glimpse of Rosetta's Shadow

OSIRIS Catches Glimpse of Rosetta's Shadow

OSIRIS images taken during Rosetta's close flyby on 14 February show 67P's surface in remarkable detail and the shadow of the spacecraft encircled in a wreath of light.


Dark Energy Camera Catches Breathtaking Glimpse of Comet Lovejoy

Dark Energy Camera Catches Breathtaking Glimpse of Comet Lovejoy

On December 27, 2014, while scanning the southern sky as part of the Dark Energy Survey, researchers snapped a shot of comet Lovejoy.


Comet 67P/Churyumov-Gerasimenko Activity Observed by Rosetta

Comet 67P/Churyumov-Gerasimenko Activity Observed by Rosetta

This single frame Rosetta navigation camera image was taken from a distance of 124 km from the centre of Comet 67P/Churyumov-Gerasimenko on 6 February 2015.


Activity on Comet 67P/Churyumov-Gerasimenko Increases

Activity on Comet 67P/Churyumov-Gerasimenko Increases

This four-image mosaic comprises images taken from a distance of 28.0 km from the centre of Comet 67P/Churyumov-Gerasimenko on 31 January.


Searching for Philae

Searching for Philae

Where is Philae? When will Philae wake up? These are the two most popular questions currently being asked of the mission especially on our social media channels.


Rosetta Data Reveals More Surprises About Comet 67P

Rosetta Data Reveals More Surprises About Comet 67P

As the Rosetta spacecraft orbits comet 67P/Churyumov-Gerasimenko, an international team of scientists have discovered that the comet's atmosphere, or coma, is much less homogenous than expected and comet outgassing varies significantly over time


Getting to Know Rosetta's Comet

Getting to Know Rosetta's Comet

Rosetta is revealing its host comet as having a remarkable array of surface features and with many processes contributing to its activity, painting a complex picture of its evolution.


Rosetta Comet Landing in 'Thud' and 3D

Rosetta Comet Landing in 'Thud' and 3D

A 3D image shows what it would look like to fly over the surface of comet 67P/Churyumov-Gerasimenko.


Osiris Spots Philae Drifting Across Comet 67P/C

Osiris Spots Philae Drifting Across Comet 67P/C

These incredible images show the breathtaking journey of Rosetta's Philae lander as it approached and then rebounded from its first touchdown on Comet 67P/Churyumov-Gerasimenko on 12 November 2014.


Philae Is Now Sleeping On A Comet

Philae Is Now Sleeping On A Comet

With its batteries depleted and not enough sunlight available to recharge, Philae has fallen into 'idle mode' -- a possibly long silence. In this mode, all instruments and most systems on board are shut down.


Video and Image: Rosetta Mission Results from Philae 14 November 2014

Video and Image: Rosetta Mission Results from Philae 14 November 2014 Video in Story

The European Space Agency provided and early morning update on the Rosetta mission discussing primarily the science results. Since the last update yesterday, ESA has decided not to fire the anchor harpoons which were need to secure the Philae lander on the surface on the comet.


Video and Images: Rosetta Mission Philae Lander Media Briefing 13 November 2014

Video and Images: Rosetta Mission Philae Lander Media Briefing 13 November 2014 Video in Story

Watch today's Rosetta media briefing, held at ESA's Space Operations Centre, Darmstadt, Germany, at 8:00 a.m. EST (1300 GMT). The replay runs about 45 minutes and includes updates from the Rosetta mission operations team, the Philae lander manager and scientists, as well as presentation of initial images and data from the surface of Comet 67P/Churyumov-Gerasimenko.


Philae Image of Comet From 3 km

Philae Image of Comet From 3 km

The image shows comet 67P/CG acquired by the ROLIS instrument on the Philae lander during descent on Nov 12, 2014 14:38:41 UT from a distance of approximately 3 km from the surface.


Touchdown! Rosetta's Philae probe lands on comet

Touchdown! Rosetta's Philae probe lands on comet

ESA's Rosetta mission has soft-landed its Philae probe on a comet, the first time in history that such an extraordinary feat has been achieved.



More top stories from April.