The dwarf planet Ceres would be quite an uncomfortable place if one were to actually stand on its surface – with a rather 'chilly' temperature of minus 60 degrees Celsius by day, which gets colder during the night. Hard, frozen ground and craters spanning kilometres – in all shapes and sizes.
Directly to the west of the gigantic graben system of Valles Marineris on Mars, lies a no less impressive region called Noctis Labyrinthus – the Labyrinth of the Night. It consists of a labyrinth of intersecting valleys and canyons up to six kilometres deep. Extending over 1200 kilometres east to west, it is almost the same length as the River Rhine.
Aviation in Europe needs to become more environmentally friendly and quieter. To get to the 'core' of aircraft noise on the ground, researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) dismantled current aircraft engines and began conducting physical modelling.
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.
One of the most striking features of a global view of Mars is the dichotomy between the topographically diverse highlands in the southern hemisphere and the flat, expansive lowland plains of its northern counterpart. Many landscape features shaped by erosion can be observed in the transitional zone between the highlands and lowlands, which explains the particular geological interest in this region.
The dwarf planet Ceres measured a mere nine pixels across on an image acquired by NASA's Dawn orbiter on 1 December 2014. Since then, the planetary researchers at the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) have received thousands of images showing the dwarf planet and its unusually varied surface.
The latest images acquired by the High Resolution Stereo Camera (HRSC), operated by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) on board the European Space Agency (ESA) Mars Express spacecraft, show a runout of the Aurorae Chaos region – an eastern continuation of the massive Valles Marineris graben system on Mars.
Philae was more than 500 million kilometres from Earth when it touched down on Comet 67P/Churyumov-Gerasimenko one year ago, on 12 November 2014. "We looked after and planned this mission for almost 20 years and launched the Rosetta orbiter and Philae lander on their journey through space – so landing day really was quite special," says Philae Project Manager Stephan Ulamec from the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) to sum up the mood on the day.