Meteor Crater, Arizona. This crater is the result of an impact of a 50m meteor, whereas the impacts described in the current work may have been hundreds of times bigger. Credit: Dr. Dale Nations, AZGS Scientists know that the Earth was bombarded by huge impactors in distant time, but a […]

Model for the Earth’s core: Heidelberg researchers verify presence of solar noble gases in metal of an iron meteorite. High-precision noble gas analyses indicate that solar wind particles from our primordial Sun were encased in the Earth’s core over 4.5 billion years ago. Researchers from the Institute of Earth Sciences […]

The meteorite studied in this work, named Miles, weighed 265 kg when it was discovered on a farm in Queensland, Australia, in 1992. This photo shows a 20-centimeter slice of the Miles meteorite loaned by the Harvard Museum of Natural History collection. Credit: Clara Maurel/MIT The signatures of ancient magnetic […]

March 20, 2020. (Click HERE for high-resolution view.) In the vastness of one of the world’s oldest deserts lies a relatively recent geologic feature: the Roter Kamm crater (“Red Comb” in German). An astronaut onboard the International Space Station photographed the crater while orbiting over the Namib Desert. It is […]

SwRI scientists studied the composition of a small shard of a meteoroid to determine that it likely originated from a previously unknown parent asteroid. This false-color micrograph of the meteoroid sample shows the unexpected amphibole crystals identified in orange. Credit: NASA/USRA/Lunar and Planetary Institute Mineralogy points to large, water-rich parent […]

Physical map of the Serra da Cangalha, Brazil, impact structure, produced using the TanDEM-X mission digital elevation model. Credit: Gottwald, Kenkmann, Reimold: Terrestrial Impact Structures, The TanDEM-X Atlas, Verlag Dr. Friedrich Pfeil Prof. Dr. Thomas Kenkmann, geologist from the University of Freiburg’s Institute of Earth and Environmental Sciences, together with […]

Scanning electron microscope image of the new mineral, Donwilhelmsite, in the lunar meteorite Oued Awlitis 001. Credit: © Museum für Naturkunde Berlin, Ansgar Greshake Donwilhelmsite is important for understanding the inner structure of the earth. A team of European researchers discovered a new high-pressure mineral in the lunar meteorite Oued […]