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CometWatch 28 January

Today's CometWatch is an image taken with Rosetta's NAVCAM on 28 January 2016, when the spacecraft was 67.6 km from the comet nucleus. With the declining comet activity, Rosetta is now approaching the nucleus of 67P/C-G at...

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Inside Rosetta’s comet

This article is mirrored from the main ESA Web Portal. There are no large caverns inside Comet 67P/Churyumov-Gerasimenko. ESA’s Rosetta mission has made measurements that clearly demonstrate this, solving a long-standing mystery. Comets are the icy remnants...

OSIRIS narrow-angle camera image captured on 27 January from a distance of 71.4 km. The image scale is 1.29 m/pixel.
Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

CometWatch – January Part 2

In this new NAVCAM view, taken 21 January, Comet 67P/Churyumov-Gerasimenko’s small lobe and its distinctive Hatmehit depression face directly towards Rosetta. The Bastet region on the small lobe faces directly up in this orientation, with Ma’at immediately...

Image of 67P/C-G obtained with the 2.5m Isaac Newton Telescope on La Palma on the morning of 19 January 2016. The picture was taken through a red filter; the apparent colour has been added to help pick out faint structures by eye. The tail extends 0.5 degrees from the nucleus (the apparent size of the full moon) before reaching the edge of the image, corresponding to a minimum length of 2.2 million km. Note that the black lines are gaps between CCDs in the array (the camera has 4 CCDs to cover half a degree).Credit: Alan Fitzsimmons / Isaac Newton Telescope

Twin tails

Amateur and professional astronomers alike have been monitoring changes in Comet 67P/Churyumov-Gerasimenko’s tail, which, since December, has been exhibiting two prominent structures. “Current indications from the data we’re collecting of Comet 67P/C-G is that both features are...

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Space science image of the week: Exploring Imhotep

A recent OSIRIS image is featured as our ESA Space Science Image of the Week; the caption is mirrored below: This beautiful landscape feels within arm’s reach in this stunning view across the Imhotep region on Comet 67P/Churyumov–Gerasimenko. The...

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CometWatch 17 January

Today's CometWatch features a NAVCAM image taken on 17 January 2016, when Rosetta was 83.4 km from the comet nucleus. The scale is 7.1 m/pixel and the image measures 7.3 km across. The image shows 67P/C-G with...

Single frame NAVCAM image taken on 7 January from a distance of 74.1 km. The image scale is 6.3 m/pixel and the image measures 6.5 km across. Credit: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0

CometWatch – January Part 1

Since the start of the 2016 we have been treated to a variety of views of Comet 67P/Churyumov-Gerasimenko from Rosetta’s OSIRIS wide- and narrow-angle cameras through their “Image of the Day” website. While some images have focused...

Click for high-res version.

Exposed ice on Rosetta’s comet confirmed as water

This article is mirrored from the main ESA Web Portal. Observations made shortly after Rosetta’s arrival at its target comet in 2014 have provided definitive confirmation of the presence of water ice. Although water vapour is the...

Examples of the images you'll find in the latest archive release

Perihelion images in NAVCAM archive

759 NAVCAM images from around perihelion, covering the period 1 July to 25 August 2015, are now available in the Archive Image Browser. Browse them in the folders labelled "Comet Escort 3 MTP018" and "Comet Escort 3 MTP019"...

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CometWatch 18-19 December

Today's CometWatch entry is a double feature, showing two NAVCAM images taken about twelve hours apart, on 18 and 19 December 2015, when Rosetta was around one hundred km from the comet nucleus. While, at first sight,...

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Philae status report: “Time is running out”

This text is based on the report published today by the German Aerospace Center, DLR. Rosetta’s lander Philae has remained silent since 9 July 2015. With every passing day, Comet 67P/Churyumov-Gerasimenko is getting further and further away...

Rosetta's view of Comet 67P/C-G on New Year's Eve. Credit: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

Holiday highlights

Happy New Year and welcome back to the Rosetta blog! We’re looking forward to sharing more scientific discoveries with you as Rosetta continues to study Comet 67P/Churyumov-Gerasimenko in unprecedented detail, all the way up to its dramatic...

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Season’s greetings!

Season's greetings from the Rosetta blog team... and from our cartoon friends at Comet 67P/Churyumov-Gerasimenko And finally... just a reminder that the blog is now taking a short break – we'll be back on 4 January 2016. Best wishes to all!

Comet dust environment on 10 December 2015. Credits: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA

Three different views of Comet 67P/C-G

In the first week since the OSIRIS team launched their new Image of the Day website, we’ve seen three rather different views of Comet 67P/Churyumov-Gerasimenko. The first image to be released (above left), taken on 10 December,...

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OSIRIS images in Archive Image Browser

The Rosetta Downlink and Archive group is pleased to announce the release of Rosetta OSIRIS images from both the wide- and narrow-angle cameras (WAC and NAC, respectively) to the Archive Image Browser and to the Planetary Science Archive....

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Year-end break notice

We can hardly believe we are approaching the end of yet another incredible year for the Rosetta mission, which has now spent nearly 500 days “living” with Comet 67P/Churyumov-Gerasimenko. From dramatic close flybys to the peak of...