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A Lumpy Moon

7 September 2021

William also sent in this link – www.yahoo.com/lifestyle/perseverance-captures-incredible-clip-lumpy-2013… … Perseverance on the surface of the planet Mars, has beamed back some nice images – including one of the Mars moons.

At https://phys.org/news/2021-08-doctoral-student-volunteers-effort-quadrup… … recruiting volunteers to look for active asteroids

At https://phys.org/news/2021-08-accidental-discovery-hints-hidden-populati… … a hidden population of brown dwarfs

At https://phys.org/news/2021-08-geologists-theory-famous-asteroid.html … the famous asteroid is Vesta, visited by the Dawn Mission a few years ago. The asteroid is composed of rock and we are told it has an iron core as well, which mainstream suspect it was a planet in the making that was aborted. Vesta has two prominent impact craters. It also has two large troughs – the main feature of interest. What triggered the formation of the troughs?

See also https://doi.org/10.1016/j.icarus.2021.114512

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