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Astronomers discover spacetime drag around a supermassive black hole — as predicted by Einstein

A star’s fatal brush with a supermassive black hole can light up a quiet galaxy. When gravity shreds the star, its gas ...
Scientific American

RNA Might Have Formed Naturally on Early Earth, Seeding Life

One key component might be RNA, a molecular cousin of DNA found in every form of life on Earth, and now scientists say they have shown how it could have formed on our planet eons ago. But not everyone ...