Perovskite solar cells exceed 25% power-conversion efficiency

Scientists have used a chemical tweak to push the power-conversion efficiency and operational stability of perovskite solar cells to 25.6% and at least 450 hours respectively. Perovskites are hybrid compounds that can be made from metal halides and organic constituents. Their attractive structural and electronic properties have placed them at the forefront of materials’ research, […] The post Perovskite solar cells exceed 25% power-conversion efficiency appeared first on Knowridge Science Report. …read more Source:: Knowridge Science Report       

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Mars has right ingredients for microbial life beneath its surface, shows study

New study suggests that rocks in the Martian crust could produce the same kind of chemical energy that supports microbial life deep beneath Earth’s surface. As NASA’s Perseverance rover begins its search for ancient life on the surface of Mars, a new study suggests that the Martian subsurface might be a good place to look […] The post Mars has right ingredients for microbial life beneath its surface, shows study appeared first on Knowridge Science Report. …read more Source:: Knowridge Science Report       

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ManipulaTHOR training software from AI2 gives virtual robots a hand — and an arm

A video frame from ManipulaTHOR’s simulation shows a virtual robot at work. (AI2 via YouTube) You can lead a virtual robot to a refrigerator, but you can’t make it pull out a drink. This is the problem that Seattle’s Allen Institute for Artificial Intelligence, also known as AI2, is addressing with a new breed of virtual robotic agent called ManipulaTHOR. ManipulaTHOR adds a highly articulated robotic arm to the institute’s AI2-THOR artificial intelligence platform — which should provide lots more capability for testing the software for robots even before they’re built. AI2-THOR was programmed to find its way through virtual versions of indoor environments, such as kitchens and bathrooms. It… Read More

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Astronauts are about to launch on a used rocket, inside a used spacecraft

Flight-proven Falcon 9 B1061 stands ready to support the Crew-2 mission to the International Space Station, seen here on Thursday morning. [credit: Trevor Mahlmann / Ars Technica ] SpaceX and NASA say they are ready for the launch of four astronauts to the International Space Station early on Friday morning. This Crew-2 mission—comprising NASA …read more Source:: Ars Technica       

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Barefoot Elon Musk talks travel to Mars — not just for the rich, he says — while announcing $100 million XPrize Carbon Removal contest

Summary List Placement During a Thursday livestream announcing the $100 million XPrize Carbon Removal competition, Elon Musk sat barefoot, donning a mullet, with XPrize chairman Peter Diamandis in Cape Canaveral, Florida. The competition is asking people to develop large-scale CO2 removal projects to help stow away and extract CO2 and rebalance the Earth’s dangerously high carbon emission trends. To win, “teams must demonstrate CO2 removal at the 1,000 tonne per year scale, model costs at the million ton per year (megatonne) scale, and present a plan to sustainably reach gigatons per year scale in future,” according to the the competition site. The Elon Musk Foundation, Musk’s relatively new philanthropy arm,… Read More

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This dietary supplement may help treat schizophrenia

In a new study from the University of Tokyo, researchers found that a simple dietary supplement reduces behavioral symptoms in mice with a genetic mutation that causes schizophrenia. They concluded that the supplement likely protects proteins that build neurons’ cellular skeletons. The supplement betaine was first isolated from sugar beets and is often linked to […] The post This dietary supplement may help treat schizophrenia appeared first on Knowridge Science Report. …read more Source:: Knowridge Science Report       

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Cancer may cause changes to the heart before treatment

Some types of cancer may alter the appearance and function of the heart, according to new research that analyzed people’s hearts before cancer treatment. An estimated 1.9 million people in the United States are expected to be diagnosed with cancer this year, according to the National Cancer Institute. Having a history of cancer is linked […] The post Cancer may cause changes to the heart before treatment appeared first on Knowridge Science Report. …read more Source:: Knowridge Science Report       

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One dose of this drug may lower anxiety and depression for 5 years

In a recent study published in the Journal of Psychopharmacology, researchers found that a one-time, single-dose treatment of psilocybin, a compound found in psychedelic mushrooms, combined with psychotherapy may lead to strong improvements in emotional and existential distress in cancer patients. These effects persisted nearly five years after the drug was administered. The study is from […] The post One dose of this drug may lower anxiety and depression for 5 years appeared first on Knowridge Science Report. …read more Source:: Knowridge Science Report       

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