Ulrich Hopp and Physics Free People Check 

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news | Max Planck Institute for extraterrestrial ...

www.mpe.mpg.de
Oct 12, · “We were very surprised to see these secondary events, which hinted at an additional structure around the dwarf planet,” says Ulrich Hopp from the Max Planck Institute for Extraterrestrial Physics and the University Observatory Munich, who was in charge of the observations at the Wendelstein observatory.
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