The landscape of the comet
The landscape of the comet
On September 30, 2016, ESA's Rosetta probe came closer than ever to the comet that had been studying from afar for more than two years. Thus, it concluded its mission with a controlled impact on the surface of 67P / Churyumov-Gerasimenko (67P / C-G).
It was the second ship in history that succeeded, after the feat of Philae, the landing module of Rosetta, which on November 12, 2014 became the first probe to land successfully on a comet.
Thanks to a set of 11 scientific instruments on board, Rosetta collected an impressive amount of images and data from this already famous comet, examining its surface, probing its interior, studying the gas and dust that surrounded it, and exploring its plasma environment . Scientists have used these measurements to advance our understanding of comets and the history of our Solar System.
This image shows a section of 67P / C-G captured by Rosetta on September 22, 2014, only a month and a half after the ship reached its encounter with the comet. At that time, the spacecraft was 28.2 km from the center of the comet (about 26.2 km from the surface). The Spanish amateur astronomer Jacint Roger Pérez selected and processed this view by combining three images taken at different wavelengths by the OSIRIS telephoto lens aboard Rosetta.
(Photo: ESA / Rosetta / MPS for OSIRIS Team MPS / UPD / LAM / IAA / SSO / INTA / UPM / DASP / IDA, J. Roger - CC BY SA 4.0)
In the center and the left side of the frame we see Seth, one of the geological regions of the largest of the two lobes of the comet, which descends towards the Hapi region, in the "neck" that connects both lobes. The background landscape reveals some features of the Babi and Aker regions, located in the major lobe of 67P / C-G. Here you can see a larger image of this area in the context of the comet.
The abrupt profile at the bottom of the image shows the cliff of Aswan, a 134 m high escarpment that separates the regions of Seth and Hapi. The observations made by Rosetta shortly before the perihelion of the comet, which took place on August 13, 2015, revealed that a fragment of the cliff had collapsed as a result of the increase in activity as the comet approached its orbit in its orbit. Sun. (Source: ESA)
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