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Last summer, astronomers used a really clever observing strategy to present the best evidence to date that dark matter, once dismissed as a hare-brained idea, really does make up most of the mass of the universe. The image above does it again, in a slightly different way.
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Last summer, astronomers used a really clever observing strategy to present the best evidence to date that dark matter, once dismissed as a hare-brained idea, really does make up most of the mass of the universe. The image above does it again, in a slightly different way.
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Goldilocks would approve. Dark matter is not too cold and not too hot, but just right, researchers have found. Furthermore, its lukewarm temperature may help pinpoint just what the mysterious material is.
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The distribution of dark matter has been mapped in 3D for the first time, revealing how the mysterious substance has evolved over the lifetime of the universe.
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Scientists say they have found the strongest evidence yet of the existence of dark matter, the elusive substance thought to be a key component of the universe.
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Dark matter makes up a vast majority of gravity-exerting mass in the universe, while only about 10 percent is matter we can see and touch.
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"There really is dark matter out there," says Dennis Zaritsky of the University of Arizona talking of the first evidence for this elusive cosmological substance, "Now we just need to figure out what it is."
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In astrophysics and cosmology, dark matter refers to hypothetical matter of unknown composition that does not emit or reflect enough electromagnetic radiation to be observed directly, but whose presence can be inferred from gravitational effects on visible matter.
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Dark Matter and Dark Energy News
