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Astronomy / Space - Environment - 24.05.2024
Pre-collapse monitoring of Kakhovka Dam in Ukraine
Pre-collapse monitoring of Kakhovka Dam in Ukraine
New findings from a spaceborne monitoring team of University of Houston, TU Delft and DLR indicates the collapse of the Kakhovka Dam in Ukraine may have been already ongoing before the war with Russia, with deformations in the dam pre-dating the actual collapse. The results were published in the journal Nature Communications Earth and Environment this month.

Astronomy / Space - Earth Sciences - 14.03.2024
Surprising insights about debris flows on Mars
Surprising insights about debris flows on Mars
The period that liquid water was present on the surface of Mars may have been shorter than previously thought. Channel landforms called gullies, previously thought to be formed exclusively by liquid water, can also be formed by the action of evaporating CO2 ice. That is the conclusion of a new study by Lonneke Roelofs, a planetary researcher at Utrecht University.

Astronomy / Space - 12.02.2024
Clouds disappear quickly during solar eclipse
Clouds disappear quickly during solar eclipse
Cumulus clouds over land start to disappear almost instantly during a partial solar eclipse. Until recently, satellite measurements during the eclipse resulted in dark spots in the cloud map, but researchers from TU Delft and KNMI were able to recover the satellite measurements by using a new method.

Astronomy / Space - Physics - 18.01.2024
M87* one year later: proof of persistent black hole shadow
M87* one year later: proof of persistent black hole shadow
The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown in new images released by the Event Horizon Telescope Collaboration. The Event Horizon Telescope (EHT) Collaboration , with contributions by Dutch astronomers, has released new images of M87*, the supermassive black hole at the center of the galaxy Messier 87, using data from observations taken in April 2018.