Wednesday, 28 March 2018

Astronomers find galaxy with no dark matter – and why that really matters

A snap of the galaxy NGC1052–DF2, taken with the Hubble Space Telescope

Dark matter is invisible and undetectable – which begs the question, how do we know it's there at all? Astronomers first suspected there was more matter than meets the eye in the 1930s, when it was observed that galaxies were moving faster than their visible mass should allow. But now there's a new wrinkle to the story, as scientists at Yale University have for the first time discovered a galaxy that appears to have no dark matter at all. Ironically, the find may just turn out to be the exception that proves the rule.

.. Continue Reading Astronomers find galaxy with no dark matter – and why that really matters

Category: Space

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from New Atlas https://ift.tt/2E2RMz1

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