Biology, physics, anthropology and paleontology all saw records broken in 2021.
From a record-setting black hole to the oldest animal DNA ever recovered, discoveries in 2021 stretched the limits of scientific study — and our imaginations.More than 13 billion years ago, when the universe was a mere 670 million years old, a black hole was born. At a mass equal to 1.6 billion suns, the newly discovered supermassive black hole J0313-1806 is
than the previous record holder for oldest known black hole . The ancient behemoth is so big that it challenges notions of how supermassive black holes first formed, astronomers say. A gold sphere on a horizontal glass beam responds to the gravitational pull of a neighboring sphere . The measurement confirms that gravity behaves as expected even for very small objects.Every object with mass has gravity too, according to both Isaac Newton and Albert Einstein, even if it’s barely noticeable.
. The tiny tug revealed that gravity behaves as predicted, even for very small masses. Researchers still want to test how gravity behaves on the even smaller quantum scale, where different rules of physics may apply. A newly discovered pterosaur from the Jurassic Period may have used its opposable thumbs to cling to tree branches and catch cicadas and other food.
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