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For those confused about the orientation of the M87 black hole photograph.
[ Gif https://t.co/CP0oR2kXhs] pic.twitter.com/ApEDzsyehY

— Domenico Calia (@CaliaDomenico) April 12, 2019

via Twitter https://twitter.com/CaliaDomenico

April 12, 2019 at 12:19PM