Author Archives: Claudia

Claudia is an astronomer and science writer working for ESA.

Comet landing descent image – 5.8 km

As Rosetta continues its descent onto the Ma’at region on the small lobe of Comet 67P/Churyumov-Gerasimenko, the OSIRIS narrow-angle camera captured this image at 08:18 GMT from an altitude of about 5.8 km. The image shows dust-covered terrains,...

Comet landing descent image – 8.9 km

As Rosetta gets closer and closer to Comet 67P/Churyumov-Gerasimenko, the OSIRIS narrow-angle camera captured this beautifully detailed image of the comet surface at 06:53 GMT from an altitude of about 8.9 km. The image shows a portion of...

Comet landing descent image – 11.7 km

During Rosetta’s final descent, which is currently undergoing, the OSIRIS narrow-angle camera captured this image of Comet 67P/Churyumov-Gerasimenko at 05:25 GMT from an altitude of about 11.7 km. With dramatic shadows, the image shows the comet’s ‘neck’...

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Rosetta Legacy Highlights

Over the past two years, the Rosetta mission has captured the imagination of many people worldwide, stimulating them to produce art and music, and to undertake other creative activities with friends and families – some even made...

The cometary zoo

The ROSINA instrument on Rosetta has been “sniffing” the environment of Comet 67P/Churyumov-Gerasimenko for the past couple of years, obtaining unprecedented measurements of the gases found in a comet’s atmosphere. Besides the main component – water vapour...

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A comet’s life – a new sonification of RPC data

In 2014, shortly after Rosetta’s arrival at Comet 67P/Churyumov-Gerasimenko, the magnetometer on the Rosetta Plasma Consortium (RPC) suite of instruments, RPC-Mag, detected some surprising oscillations in the plasma surrounding the nucleus, revealing the comet’s mysterious “song”. Now,...

Comet Landscapes and maps of the southern hemisphere

During today’s science briefing at ESA’s ESOC, Mohamed El-Maarry (University of Bern) presented a series of highlights about the landscape of Comet 67P/Churyumov-Gerasimenko. Here are some highlights from his presentation. Over the past two years, Rosetta mapped...

Science highlights briefing starting soon

The Rosetta science highlight briefing at the European Space Operations Centre (ESOC) in Darmstadt, Germany, will start shortly. Tune in from 14:30 14:45 to the livestream viewer at rosetta.esa.int or via https://livestream.com/ESA/rosettagrandfinale or ESA’s Facebook page to follow...

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Ambition – Epilogue: The Journey Continues

After her long, arduous training, our young Apprentice is now a fully fledged Master of cosmic origins, exploring an alien planet rich with water and life. But something familiar crosses her mind. Memories from her training, and...

CometWatch – 31 August & 11 September

This week’s CometWatch entry is a double feature, with two images of Comet 67P/Churyumov-Gerasimenko from Rosetta’s NAVCAM taken on 31 August and 11 September 2016, when the spacecraft was 8.8 and 9.8 km, respectively, from the centre...

What does the Rosetta mission mean to you?

To celebrate the success of Rosetta and to keep a long-lasting record of its impact on the world, we invite you to share your personal experiences and feelings about how the mission has influenced you. Perhaps you...

CometWatch – late August round-up

This week’s CometWatch entry was taken with Rosetta’s NAVCAM on 17 August 2016, when the spacecraft was 13.9 km from the nucleus of Comet 67P/Churyumov-Gerasimenko. This close-up view shows a portion of the Imhotep region, on the...

How comets are born

This story is mirrored from the ESA Web Portal. Detailed analysis of data collected by Rosetta show that comets are the ancient leftovers of early Solar System formation, and not younger fragments resulting from subsequent collisions between...

Farewell, silent Philae

Tomorrow, 27 July 2016 at 09:00 UTC / 11:00 CEST, the Electrical Support System Processor Unit (ESS) on Rosetta will be switched off. The ESS is the interface used for communications between Rosetta and the lander, Philae,...