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Astronomers spot supernovas whose split light could tell us how fast the universe is expanding
The universe is expanding. But how fast? SN Ares and SN Athena, two distant supernovas that exploded billions of years ago, may provide the answer, according to astronomers from the Space Telescope ...
That the universe is expanding has been known for almost a hundred years now, but how fast? The exact rate of that expansion remains hotly debated, even challenging the standard model of cosmology. A ...
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