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CometWatch 15 April

Today's CometWatch entry is a single frame NAVCAM image obtained on 15 April, from a distance of 170 km from the centre of Comet 67P/Churyumov-Gerasimenko. At this distance, the resolution is 14.5 m/pixel; the image has been...

Meet more COSIMA dust grains! The target plate measures 1cm across, and shows dust grains collected between 11 August and 12 December 2014. Credits: ESA/Rosetta/MPS for COSIMA Team MPS/CSNSM/UNIBW/TUORLA/IWF/IAS/ESA/
BUW/MPE/LPC2E/LCM/FMI/UTU/LISA/UOFC/vH&S.

COSIMA: Meet the family

Rosetta’s dust analysing instrument COSIMA (COmetary Secondary Ion Mass Analyser) has been very busy collecting dust – 12,000 grains and counting! The COSIMA team shared this image of some of their named dust grains at the European...

Comet 67P/C-G on 14 April 2015. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0

CometWatch 12 April

Today’s CometWatch entry was taken by Rosetta’s Navigation camera on 12 April from a distance of 146.8 km from the centre of Comet 67P/Churyumov-Gerasimenko. The image scale is 13m/pixel and has been processed to bring out the...

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Rosetta at EGU – press briefing 14 April

Rosetta mission scientists are meeting this week in Vienna, Austria, for the annual European Geosciences Union General Assembly, EGU. A press briefing will be held on Tuesday 14 April at 12:00 CEST, to report on the latest science results from...

Comet 67P/C-G on 25 March. The image is processed to bring out details of the comet activity and is cropped to measure 6.9 km across. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0

CometWatch: Activity 31 January – 25 March

Today’s CometWatch entry is dedicated to Comet 67P/C-G’s activity – this stunning montage of images is showcased as our ‘Space Science Image of the Week’. The images cover the time period between 31 January (top left) and...

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CometWatch 8 April

Today's CometWatch entry is a mosaic of four NAVCAM images obtained last Wednesday, 8 April, from an average distance of 137 km from the centre of Comet 67P/Churyumov-Gerasimenko. The image resolution is 11.7 m/pixel and the individual...

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Next listening opportunities for Philae

Based on the latest report published by the German Aerospace Centre. Despite Rosetta’s new trajectory scheme, the orbiter is still able to listen out for its lander Philae, in case it has woken up from hibernation. Thus...

An example of 'pyramid' trajectories close to the comet. (Note this is a screen shot taken from our 2014 animation "Rosetta's orbit around the comet")

New trajectories for Rosetta

Rosetta continues to recover well from the problems experienced during the close flyby over the weekend of 28 March that resulted in the spacecraft entering safe mode. Some of the science instruments are now switched back on...

The location of GIADA marked on the Rosetta spacecraft. 
Image courtesy Alessandra Rotundi

GIADA investigates comet’s “fluffy” dust grains

In a recent paper published in the Astrophysical Journal Letters, the GIADA team present their findings on the properties of dust particles from Comet 67P/Churyumov-Gerasimenko. This blog post has been prepared with inputs from lead author Marco...

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Near and far – CometWatch 28 March-2 April

CometWatch is back with two images, to offer a taste of Rosetta's trajectory in the past couple of weeks. The first of today's entries is a 2x2 montage of NAVCAM images obtained on Saturday 28 March from...

This stunning scene was created from two NAVCAM frames acquired at 19.9 km from the comet centre on 28 March. The scale is about 1.7 m/pixel and the image measures 3.1 x 1.7 km. The image has been adjusted for intensity and contrast, and the vignetting has been fixed.

CometWatch 28 March – 14 km flyby

As part of the recent series of trajectories around Comet 67P/C-G, Rosetta passed within about 14 km of the comet’s surface on Saturday. Despite operational difficulties encountered during the flyby, Rosetta’s NAVCAM was able to acquire images...

Rosetta's star trackers are marked here in red (above Philae in this pre-seperation artist impression). Part of the high gain antenna can be  seen in the background.  Image credit: ESA/ATG medialab.

Rosetta status report: close flyby navigation issues

During its most recent close flyby last Saturday, where Rosetta flew within 14 km of the surface of the comet, the spacecraft experienced significant difficulties in navigation. This resulted in its high gain antenna starting to drift...

Cropped and processed single frame NAVCAM image of Comet 67P/C-G taken on 22 March 2015 from a distance of 77.8 km to the comet centre. The processed image is cropped and measures 6 x 6 km. Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0

CometWatch 22 March

This single frame Rosetta Navigation Camera image was taken on 22 March 2015 at a distance of 77.8 km from the centre of Comet 67P/C-G. The image scale is 6.6 m/pixel and the 1024 x 1024 pixel...