Egyptian history has been explored, new words invented and appropriate comparisons sought for; a total of about 8300 suggestions for Philae’s landing site on Comet 67P/Churyumov-Gerasimenko were received at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR), the French Space Agency (Centre National d'Etudes Spatiales; CNES) the Italian Space Agency (Agenzia Spaziale Italiana; ASI) and the European Space Agency (ESA).
The Airbus A300 ZERO-G has completed 5200 flights, 4200 flying hours and 13,180 parabolas in the service of science and microgravity research. Now, the parabolic flight aircraft, operated by French company Novespace, is bowing out into well-earned retirement following the 25th research campaign for DLR.
The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) has been commissioned by the World Bank to investigate Pakistan’s potential for the exploitation of solar energy. DLR researchers will be using satellite data and ground measurements to generate a radiation map showing the best regions for solar power generation in Pakistan.
The radar satellite TerraSAR-X has been orbiting the Earth since June 2007; in June 2010 its twin, TanDEM-X, followed it into space. For almost four years, the two satellites have been operated in a close flight formation by DLR.
Volcanic ash can cause serious problems for aviation. Under Project VolcATS-Vehicle, researchers from DLR are investigating the effects of volcanic ash on aircraft.
Thunderclouds over rainforests are an important element in the climate system. The DLR research aircraft HALO spent the period from the beginning of September to the beginning of October 2014 in Manaus, a city in the Brazilian state of Amazonas, measuring the emergence, development and properties of tropical clouds.
In mid September, the site where the Philae lander will touch down on Comet 67P/Churyumov-Gerasimenko was selected – landing site 'J'. Now, there is a detailed timetable for the descent of Philae. The lander will undock from the Rosetta spacecraft at 09:35 CET on 12 November 2014 at a distance of approximately 22.5 kilometres from the centre of the comet and land on the surface about seven hours later.
Since the Icelandic volcano system of Bardarbunga began erupting, concerns about a volcanic ash cloud spreading across Europe and bringing air traffic to a standstill, as occurred in April 2010, have arisen once again. To enable the aviation industry to respond to volcanic ash more flexibly in the future, the German Aerospace Center (DLR) has been developing an improved satellite-supported volcanic ash detection system as part of Project VolcATS (Volcanic Ash Impact on the Air Transport System). DLR researchers are using improved views of the situation to investigate how air traffic management can adapt flexibly to large-scale airspace restrictions caused by volcanic ash
Aircraft engine noise is a socially pressing issue with a wide range of causes. Until now, turbulent fluctuations in the exhaust gas stream have not been fully understood as one of the major sources of noise. Researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) have now managed to make these turbulent flow structures in the engine exhaust gases visible using imaging laser measurement technology, and they have measured the overall flow behind the engine with unprecedented quality. Future generations of engines will be able to benefit from this new knowledge.
The 2014 harvest season is coming to an end, and throughout Germany the signs are of good yields for wheat, corn and similar crops. But the differences are large depending on the location. Hence, for optimum cultivation, it is important to be constantly aware of the condition of the soil and the crops. Radar images are particularly suitable for providing large-scale observations – using an aircraft or a satellite.
To support the safety of air transport and improve the air traffic system's response times in the critical event of a volcanic eruption, the identification of ash-free airspace is essential. At DLR, a satellite-supported procedure has been developed that rapidly determines the distribution of ash in the air and generates detailed images of areas with both heavy and light ash loads.
When the Philae lander touches down on 11 November 2014, Comet 67P/Churyumov-Gerasimenko will have a landing site waiting for it with a varied but not too rugged landscape offering good solar illumination and hardly any steep slopes. In a two-day selection process, the lander team under the leadership of DLR selected landing site 'J' from among five possible candidates.
The Bardarbunga volcano on Iceland began erupting on 31 August 2014 – an effusive eruption with no ejection of volcanic ash. However, measurements made by DLR have since indicated that there is ongoing emission of sulphur dioxide (SO2). High sulphur dioxide concentrations in the atmosphere are a clear indication of volcanic activity, as there are no other natural emission sources, only anthropogenic ones.
Lucie Poulet, from DLR, spent four months living 'on Mars', donning a spacesuit to explore the Red Planet and cultivating vegetables inside the domed Mars station. To do all this, she did not have to move away from her home planet, Earth.
Pumping fuel with no bubbles is no problem at the filling station around the corner, but it certainly is in the microgravity environment of space. The fourth and final series of the Capillary Channel Flow (CCF) experiments on the International Space Station (ISS), which began on 5 August 2014, has just come to an end.
Bardarbunga, (Bárðarbunga) in Iceland, one of the largest volcanoes in Europe and located beneath the biggest glacier in Europe, became active again in mid-August. For several years now, DLR researchers have been keeping a close eye on Bardarbunga and the system of volcanoes associated with it – an enormous network of subterranean magma channels, vents and craters.
The first things the AISat satellite caught sight of were the Russian Kamchatka Peninsula and the Bering Sea – but at that time only one non-directional rod antenna was in use on board the satellite. Within eight minutes, the receiver picked up Automatic Identification System (AIS) signals from 45 ships.
The radar system on board the European Space Agency (ESA) Sentinel-1A satellite has been imaging Earth's surface in 250-kilometre swathes since April 2014. Now, scientists at DLR, working under a contract from ESA, have created the first interferogram from this data – showing the topography of Earth as a coloured pattern.
Never before did a mission team have to select a landing site on a comet – the Philae lander will be the first spacecraft ever to land on a comet and conduct in situ measurements. The ESA Rosetta spacecraft and the Philae lander began their journey to their final destination – comet 67P/Churyumov-Gerasimenko – 10 years ago.
When the Philae lander reaches its landing site on Comet 67P/Churyumov-Gerasimenko, it needs to be at a level yet scientifically interesting location, with enough sunlight and the right conditions to ensure a long working life. However, the rugged, unusually shaped comet is not making the choice easy for the lander team.