Vegetation and soil are currently slowing down global warming by absorbing about a quarter of human emissions of carbon dioxide (CO2). This land carbon sink is believed to be in part due to increases in photosynthesis. A new study in the journal Nature shows that doubling of the carbon dioxide concentration in the atmosphere will cause global plant photosynthesis to increase by approximately one third.
Everyone knows this situation with a weather forecast, when the presenter reveals a new Icelandic low on the map. Very soon, they are then often told, the trough of low pressure will reach the mainland and determine the weather for many days in Europe. Small errors often lead to the forecast in Europe being very uncertain for several days, because the system develops vigorously in the 'weather kitchen' over the Atlantic, and that is difficult to capture in weather models.
The Philae landing craft touched down on comet on 12 November 2014. It has now been found: it is not located at the convenient site originally selected for its landing, but rather – following a series of three bounces – in a grim and dark environment.
Reducing aircraft noise over residential areas while saving kerosene – this dual improvement is the aim of a joint research project being conducted by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and the Umwelt- und Nachbarschaftshaus (UNH) in Kelsterbach.
METimage, a new satellite instrument for weather and climate forecasting, is now entering its final phase. On 20 September 2016, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and Airbus Defence and Space signed an agreement for the design, construction and testing of the radiometer.
With a diameter of 20 metres, Earth appears to float above visitors to the Gasometer Oberhausen, while banks of clouds, days and nights – and even rain showers – flow across its surface. Over half a million people have already visited the 'Wonders of Nature' exhibition, making this display in the old industrial monument one of this year's most popular exhibitions.
Researchers from the German Aerospace Center (Deutsches Zentrums für Luft- und Raumfahrt; DLR) will be showcasing current research projects with the objective of making rail transport faster, more efficient, safer and more comfortable at InnoTrans, the world's largest trade fair for train and transport technology. The fair will be held from 20 to 23 September in Berlin.
With a new Malik Verlag publication, 'm4 Mountains – Die vierte Dimension' (m4 mountains – the fourth dimension), the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) presents another image book from the world of satellite-supported Earth observation. In 200 pages, Stefan Dech and Nils Sparwasser, together with mountaineering legend Reinhold Messner, show some of our planet's fascinating mountains in a completely innovative way.
On 14 September 2016 in Berlin, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and the French space agency (Centre national d'études spatiales; CNES) signed a cooperation agreement for the design, construction and operational phases of the Franco-German climate satellite MERLIN in the presence of Brigitte Zypries, Parliamentary State Secretary at the German Federal Ministry for Economic Affairs and Energy (BMWi) and Federal Coordinator of German Aerospace Policy, as well as Thierry Mandon, French Minister of State for Higher Education and Research.
Landing is one of the most labour-intensive stages of a flight. To help the pilots produce the lowest possible amount of noise in complex manoeuvres during the approach phase, the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) has developed the Low Noise Augmentation System (LNAS) pilot assistance system.
On 9 September 2016 at 13:00 CEST, the BIROS (Bi-Spectral Infrared Optical System) fire detection satellite developed and built by the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) released BEESAT-4 (Berlin Educational and Experimental Picosatellite) into space 515 kilometres above the Norwegian Svalbard archipelago.
Four days and four cases that pose a threat to maritime security – in several scenarios that took place between 5 and 9 September 2016, the EMSec joint project (Echtzeitdienste für die Maritime Sicherheit - Security; Real-Time Services for Maritime Security) was able to successfully demonstrate research findings from the last three years.
What effects do tropical clouds have on our climate? Do they warm up or cool down the atmosphere? What factors do they influence? Even the latest models do not fully understand the effects of these climate-influencing 'clouds'.
The comet lander Philae has been found. The OSIRIS camera on board the Rosetta orbiter took the revealing images of the surface of Comet 67P/Churyumov-Gerasimenko on 2 September 2016. They show the landing craft lying sideways in a crevasse. Two of the three landing legs are clearly visible.
The National Aeronautics and Space Administration (NASA) has finally confirmed the new launch date for the InSight mission, with the first launch opportunity to the Red Planet set for 5 May 2018. The mission was in fact scheduled for launch in March 2016, and land on Mars six months later.
In the Situation Centre, an alarm flashes on the screen – a passenger ferry has changed its planned course for no apparent reason. The AIS (Automatic Identification System) signal eventually disappears from the display. By now, all ship-specific information must have been requested and compared in order to quickly clarify the situation and take immediate action.
West Africa is changing. An explosively growing population, massive urbanisation, complex meteorological influences, unregulated deforestation and air pollution modify the composition of the atmosphere, not only impacting human health but also the weather and climate. How bad the problem actually is and how exactly these emissions are changing the region in the long-term is not yet clear. Researchers from the German Aerospace Center (DLR) used the Falcon research aircraft to analyse the tropical air on the West African coast in order to determine its composition and its effect on the clouds’ climate-relevant properties. The measurement flights were part of the five-year EU project DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa)..
Headaches, nausea or even swollen hands and feet: the test subjects currently ascending at a rapid pace to Europe’s highest building to voluntarily experience altitude sickness have all of these things coming their way. Ten test subjects will gather at the Margherita Hut in the Valais Alps in Italy, where their bodies will be closely monitored to see how they respond to an altitude of 4554 metres above sea level, oxygen depletion and low air pressure. “If astronauts are stationed in a Mars habitat some time in the future, it is extremely probable that they will live and work in an atmosphere with similar pressure conditions,” explains Ulrich Limper, the mission’s medical director from the German Aerospace Center (DLR). “As things stand, though, we are unable to predict which persons will experience altitude sickness and what the causes may be.” A possible explanation: “The oxygen depletion encountered at high altitudes damages the vascular barrier, allowing fluid and proteins to seep into the connective tissue. In some instances, this will produce dangerous oedema in the body, especially in the lungs and the brain.”
Rail accidents, even those that occur at low speeds, can have devastating consequences – in many cases, hundreds of tons of moving mass collide with each other, and carriages crash into each other or even derail.
It's hard to say what surprised scientists and engineers the most during the Rosetta mission: the unusual form of Comet 67P/Churyumov-Gerasimenko that earned it the nickname 'Rubber Duck'? The bizarre, unexpectedly varied landscape with fissures, terraces, crevasses, steep cliffs and even dune-like structures?