An interview with Holger Sierks from the Max Planck Institute for Solar System Research on the end of the Rosetta mission.
May 31, 2023 Astronomy Astrophysics Chemistry (M&T) Solar System How iron in meteorites
Neue Experimente zeigen die Komplexität chemischer Reaktionen auf dünnem Eis um Staubkörner
Laufe der Entwicklung eines Planetensystems können solche organischen Moleküle von Meteoriten
A team of researchers around M. Hirscher of the Max Planck Institute for Intelligent Systems has presented a metal-organic framework compound as a filter for deuterium and tritium.
May 31, 2023 Astronomy Astrophysics Chemistry (M&T) Solar System How iron in meteorites
The third-largest crater on the dwarf planet Ceres was geologically active at least once many millions of years after its formation. In a recent study published today in the journal Nature Communications, researchers from the Max Planck Institute for Solar System Research (MPS) in Göttingen, the University of Münster (WWU) and the National Institute of Science Education and Research (NISER) in Bhubaneswar, India present the most detailed study of Urvara crater to date. For the first time, they evaluated camera images from the last phase of NASA’s Dawn mission, which reveal geological structures only a few meters in size. The Dawn spacecraft entered orbit around the dwarf planet in 2015 and studied it up close for about three and a half years. Like Occator crater, Urvara crater may have been the scene of cryovolcanic activity, the researchers argue. The study supports the picture that a global saline ocean extended beneath Ceres‘ crust, some of which may still be liquid today.
May 31, 2023 Astronomy Astrophysics Chemistry (M&T) Solar System How iron in meteorites
Linjie Zhi und seine Partnergruppe des Max-Planck-Instituts für Polymerforschung optimieren Graphen mithilfe der Chemie für diverse Anwendungen.
Mai 2023 Astronomie Astrophysik Chemie (M&T) Sonnensystem Wie Eisen in Meteoriten
Verschiedenen Periodensystemen der chemischen Elemente etwa von Mendelew und Meyer, aber auch von anderen Wissenschaftlern liegt dieselbe generelle Struktur, nämlich ein geordneter Hypergraph, zu Grunde, wie G. Restrepo und W. Leal vom Max-Planck-Institut für Mathematik in den Naturwissenschaften zeigen.
Mai 2023 Astronomie Astrophysik Chemie (M&T) Sonnensystem Wie Eisen in Meteoriten
Coffee: It leaves some people feeling fit and refreshed; in others, it makes their heart race. Scientists have developed several decaffeination processes to allow even people who react badly to caffeine to enjoy a cup of the “black brew.” Kurt Zosel from the Max Planck Institute for Coal Research in Mülheim an der Ruhr came across one of these processes quite by chance in 1967.
May 31, 2023 Astronomy Astrophysics Chemistry (M&T) Solar System How iron in meteorites
The Moon’s polar regions are home to craters and other depressions that never receive sunlight. Today, a group of researchers led by the Max Planck Institute for Solar System Research (MPS) in Germany present the highest-resolution images to date covering 17 such craters in the journal Nature Communications. Craters of this type could contain frozen water, making them attractive targets for future lunar missions, and the researchers focused further on relatively small and accessible craters surrounded by gentle slopes. In fact, three of the craters have turned out to lie within the just-announced mission area of NASA’s Volatiles Investigating Polar Exploration Rover (VIPER), which is scheduled to touch down on the Moon in 2023. Imaging the interior of permanently shadowed craters is difficult, and efforts so far have relied on long exposure times resulting in smearing and lower resolution. By taking advantage of reflected sunlight from nearby hills and a novel image processing method, the researchers have now produced images at 1-2 meters per pixel, which is at or very close to the best capability of the cameras.
Since the Moon has no atmosphere, very small meteorites repeatedly fall onto its
Astrophysik
Drążkowska vom Göttinger Max-Planck-Institut für Sonnensystemforschung anhand von Meteoriten
Astrophysik
Drążkowska vom Göttinger Max-Planck-Institut für Sonnensystemforschung anhand von Meteoriten
