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‘The trampoline is working!’ The story behind Elon Musk’s one-liner at SpaceX’s big launch

Musk’s remark after SpaceX’s first crewed launch on Saturday (May 30) references a 2014 barb by a top Russian official.
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Mysterious ‘Fermi Bubbles’ may be the result of black hole indigestion 6 million years ago

Twin shock waves produced by the galaxy’s central black hole could have inflated the gargantuan Fermi Bubbles about 6 million years ago, a new study suggests.