The DLR institute established at Berlin-Adlershof was founded in 1992 and is involved in all major European missions of planetary research venturing out into our Solar System.
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When looking at Mars through a telescope, once does not usually recognise many landscape features – especially since observations are often affected by dust storms that rage in the Martian atmosphere. The Hellas Planitia impact basin is, however, visible as a large, light, almost circular area in the southern hemisphere. Images of the deepest parts of this impact basin – with unusually great visibility – have now been acquired with the High Resolution Stereo Camera (HRSC), operated by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) on board ESA’s Mars Express spacecraft.
Record cold temperatures on Earth are far from the low point on a comet formed from ice and dust. Researchers using the Visible and InfraRed Thermal Imaging Spectrometer (VIRTIS) on board ESA’s comet rendezvous spacecraft, Rosetta, have determined that the average temperature on Comet 67P/Churyumov-Gerasimenko is a mere minus 70 degrees Celsius. This is where, in November 2014, the lander Philae – constructed and operated by a consortium led by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) will touch down. “At this temperature, the surface of the comet is not completely covered with a layer of ice, but with dark, dusty material,” says DLR planetary researcher Gabriele Arnold, who heads the German scientific contributions to this experiment. The temperature was measured during Rosetta’s approach to the comet, where it is due to arrive on 6 August 2014.
Less than 2000 kilometres separate the ESA orbiter Rosetta and the Philae lander from their destination, Comet 67P/Churyumov-Gerasimenko. Images acquired with the OSIRIS camera system already indicate what lies ahead for the orbiter and lander upon arrival: "The surface seems pretty rough. We will have to wait to determine whether the visible depressions are impact craters or structures produced by cometary activity," says Ekkehard Kührt from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR). The comet researcher is involved in the acquisition of data by the OSIRIS camera and is also responsible for data analysis. Another image taken by the camera shows that a cloud of dust, the coma, enshrouds the comet. “As we draw closer to Churyumov-Gerasimenko, the other instruments used in the mission will provide us with interesting insights into the interaction between the dust and the surrounding gas.”
Tough, resilient and able to survive in the most inhospitable regions on Earth –now, they are being asked to show their strength in a space environment as well; blue-green algae (cyanobacteria of the genus Nostoc) and biofilms (deinococcus geothermalis) will depart for the International Space Station (ISS) at 23:44 CEST on 23 July 2014 on board a Progress spacecraft.