A comet is largely composed of water ice and water vapour predominates in its 'atmosphere' – the coma that forms as it nears the Sun. However, very few examples of water ice have previously been observed on the surface of a comet.
Currently just 385 kilometres away from the surface, the Dawn spacecraft is orbiting Ceres and acquiring images that show the dwarf planet at an unprecedented resolution of just 35 metres per pixel. These images allow scientists to look at a surface strewn with craters, fractures, domes and bright areas.
The last clear sign of life was received from Philae, the Rosetta mission's comet lander, on 9 July 2015; since then, it has remained silent. Now, Comet 67P/Churyumov-Gerasimenko is moving away from the Sun and the temperature on the comet's surface and the amount of sunlight are both decreasing.
The Canary Islands could meet their entire electricity requirements from renewable energy sources by 2050, thereby establishing a sustainable, zero-emission and economically viable long-term energy supply, as demonstrated by a recently published study produced by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) on behalf of Greenpeace.
Although it is a simple gesture of greeting, it nevertheless remains an extraordinary moment; a handshake between an astronaut on the International Space Station (ISS) and researchers from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR).
Arable land disappeared from city centres, where most people live, many years ago. Nowadays, food is transported over long distances before reaching the consumer. Researchers from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) have now joined with international partners to create 'Vertical Farm 2.0', which will enable the multi-level cultivation of plants in large cities.
On Tuesday 8 December at the 2015 UN Climate Change Conference COP 21 in Paris, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and the French space agency (CNES) met to reaffirm their commitment to jointly develop the MEthane Remote sensing LIdar missioN (MERLIN) satellite that is set to measure concentrations of methane in Earth's atmosphere with unprecedented accuracy.
Energy researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) have put into service an innovative thermal storage system that uses lime as the storage medium. The lime storage system is a further development of an initial prototype and can store energy more economically and efficiently.
The science and technology demonstrator LISA Pathfinder lifted off from Europe's Spaceport in Kourou, French Guiana on board a Vega rocket at 05:04 CET on 3 December 2015. Preparations for this European Space Agency (ESA) mission, which places unprecedented requirements on both payload and spacecraft, have lasted more than 10 years.
Mobile telephones, high-speed Internet, up-to-date meteorological data and navigation programs available anytime, anywhere – all thanks to satellites. Bandwidth and frequencies that are revised every three to four years at the World Radiocommunication Conference play an important role in this.