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From W.M. Keck Observatory: “Unexplained Brightness from Colossal Explosion” » W.M. Keck Observatory two ten meter telescopes operated by California Institute of Technology and The University of California, at Mauna Kea Observatory, Hawai’i, altitude 4,207 m (13,802 ft) . Credit: Caltech.
richardmitnick 11:09 am on November 12, 2020 | Full size is 1600 × 900 pixels Reply
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