A network of huge fractures covers Utopia Planitia – a buried impact basin measuring 2000 kilometres in the Martian Northern Lowlands, which was the destination of the United States Viking 2 lander in 1976. These surface structures, which are referred to as polygons, would suggest that there was once an ocean here.
These images, acquired by the High Resolution Stereo Camera (HRSC), on board the European Mars Express spacecraft, operated by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR), show part of the Meridiani Planum region.
With a length of 600 kilometres and a depth of up to two kilometres, Mawrth Vallis is one of the biggest valleys on Mars and a possible landing site for the ESA ExoMars and NASA Mars 2020 missions. It is entrenched in the Arabia Terra highland, which is more than four billion years old, and ends in the great Chryse Planitia lowland region.
On 22 June 2016 at 05:55 CEST, the BIROS (Bi-Spectral Infrared Optical System) microsatellite was successfully launched into space from the Satish Dhawan Space Centre in India on board a Polar Satellite Launch Vehicle (PSLV).
These images, acquired by the High Resolution Stereo Camera operated by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) on board the European Mars Express spacecraft show a part of the Noachis Terra region in the southern highlands of Mars. The crater shown is approximately four kilometres deep and has a diameter of roughly 50 kilometres.
The images presented here, 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 part of the Memnonia Fossae region on Mars.
A diameter of 2200 kilometres and a depth of up to nine kilometres: these are the dimensions of the largest impact crater on Mars – Hellas. Only the Moon's South Pole-Aitken Basin and the Valhalla structure on Jupiter's moon, Callisto, have a similar size.
The dwarf planet Ceres is becoming an increasingly mysterious – and exciting – celestial body as the planetary researchers working on the Dawn mission acquire more and more details. The contrast-enhanced true colours show a bluish material around several craters and mountain slopes.
In December 2015, the Mars mission InSight was put on hold, but it has now been provisionally scheduled to launch to the Red Planet at the next opportunity – in May 2018. Technical difficulties with one of the two main experiments – the seismometer – had led to the US space agency, NASA, cancelling the launch that had been planned for March 2016. Now, a decision has been made – the mission has been given a reprieve, and a new launch date in two years' time.
When looking at the large-scale topography along the equator of Mars, what truly stands out are the many, extremely wide drainage channels leading north without many lateral inflows. The smaller valley systems are not so noticeable in these images. They often have multiple branches and meander across the terrain. Such valley systems can be found on Earth. Arda Valles in the Martian highlands is a good example of such a drainage system.
Sailing in the regions that polar researcher Arved Fuchs is currently navigating in his ship 'Dagmar Aaen' is a not an easy task. The 'Ocean Change' expedition is travelling around the Antarctic Peninsula, stopping off at a number of research stations to investigate how climate change is impacting the local environment.
The last prolonged silence had already indicated that contact with the Philae lander will be increasingly unlikely, and the conditions on Comet 67P/Churyumov-Gerasimenko have become more hostile. "Unfortunately, the probability of Philae re-establishing contact with our team at the DLR Lander Control Center (LCC) is almost zero, and we will no longer be sending any commands; it would be very surprising if we received a signal now," said Stephan Ulamec Philae Project Manager of the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR).
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.
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.
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.
Indonesia is on fire – the island state is currently facing a bitter struggle against forest and peat fires on Sumatra and Borneo, most likely caused by illegal 'slash and burn' farming to clear the land for palm oil or timber plantations. The extremely dry conditions resulting from the El Niño weather phenomenon exacerbate this problem.