Could reusable rockets make solar geoengineering less risky?

Rockets could carry cooling aerosols to high altitudes Kevin Dietsch/Getty Images Reusable rockets that deliver sun-reflecting aerosols to the top of the stratosphere could cool the planet – with fewer negative side effects than lower-altitude solar geoengineering. But a fleet of climate-cooling rockets would come with its own downsides. The rise in global average temperatures…

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Scientists Find Universe’s Missing Matter in Intergalactic ‘Cosmic Fog’

Scientists Find Universe’s Missing Matter in Intergalactic ‘Cosmic Fog’ Researchers have used cosmic explosions called fast radio bursts to illuminate the intergalactic medium By Robert Lea & SPACE.com Astronomers have long struggled to see and study the dilute, dark gas and dust between galaxies, depicted in this artist’s concept as blue and purple filaments in…

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Is nuclear energy good? A new book explores this complex question

Atomic DreamsRebecca Tuhus-DubrowAlgonquin Books, $30 Toxic sludge. A glowing radioactive rat. A three-eyed fish named “Blinky.” These are scenes from a 1990 episode of the long-running television show The Simpsons, in which protagonist and oaf Homer is a safety inspector at the fictional Springfield Nuclear Power Plant. The imagined horrors of the plant reflect concerns…

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RFK, Jr., Fires CDC Vaccine Panel Experts, Ocean Acidification Hits Dangerous Levels, and Pangolins Face Hunting Threat

RFK, Jr., Fires CDC Vaccine Panel, Oceans Are Acidifying, and Pangolins Face Newly Understood Threat Major changes hit a key CDC vaccine advisory panel, ocean acidification crosses a critical threshold, and new research reveals an unexpected threat to pangolins. By Rachel Feltman, Lauren J. Young, Fonda Mwangi & Alex Sugiura Anaissa Ruiz Tejada/Scientific American This…

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