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Scientific American

Supermassive Black Hole Sagittarius A* May Have Once Shone 10,000 Times Brighter Than Today

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U.S. Greenhouse Gas Emissions Are Rising for the First Time in Two Years—They Could Climb Far Higher

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Pentagon Reportedly Testing Radio Wave Device Linked to ‘Havana Syndrome’

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70 Percent of Cancer Patients Now Survive at Least Five Years, Study Finds

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Vertical Solar Panels—Wind-Resistant Trackers for High Latitudes

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