This spot will be key to the inevitable collapse of a key Atlantic current

Scientists have pinpointed the ocean engine with the biggest role in driving key Atlantic currents that regulate Earth’s climate, new research suggests. The Irminger Sea off southeastern Greenland is where warm waters that transport heat northwards from the Southern Hemisphere sink and then return south along the bottom of the ocean. As such, this region plays a critical role in powering the ocean conveyor belt known as the Atlantic Meridional Overturning Circulation (AMOC). “The key finding of this study is that the Irminger Basin (eastern Greenland) plays a crucial role…

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$255 off for Black Friday, this astronomer-friendly MacBook Air has never been cheaper

Black Friday is a great time to go hunting for a laptop and if you are buying for an astronomer, student or creative, you really cannot go wrong with a MacBook. Thanks to Amazon’s Black Friday sale, this 2024 MacBook Air 13-inch M3 laptop is the cheapest it has ever been at an amazing $255 off this Black Friday, making it just $844. Get the 2024 MacBook Air 13-Inch M3 laptop in Amazon’s Black Friday sale for $844. MacBooks are popular with students, creatives and other business professionals and for…

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How bacteria are inspiring the next generation of space-borne lasers

Solar-powered lasers that run on the photosynthetic machinery of bacteria could one day provide a low mass, simple and sustainable means of providing power in space, replacing the usual heavy lenses and complex electronics that aren’t very cost-effective to launch. “Our plan is to use photosynthetic structures extracted from bacteria, and the idea is that you can grow them and keep replenishing material, you don’t need to maintain a supply line from Earth,” Erik Gauger, a professor of photonics and quantum science at Heriot Watt University in Edinburgh and leader…

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