Definition of dark matter
: nonluminous matter not yet directly detected by astronomers that is hypothesized to exist to account for various observed gravitational effects
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There’s one more thing: Galaxy NGC 1052-DF2 is missing most, if not all, of its dark matter, and scientists have no idea why.
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From the distortions, researchers deduced the distribution of dark matter in the cluster.
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Icarus's bright glow is also helping astronomers test hypotheses about dark matter—the elusive material that's thought to make up most of the mass in the universe.
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The next challenge for researchers will be looking for more examples of galaxies without dark matter.
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From Wired, the story of a galaxy with very little dark matter, which astrophysicists say is a crucial component in holding the universe together.
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The discovery of DF2 marks an important step in confirming the dark matter’s existence.
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The hope, however, is that the LHC might be able to discover a new set of particles (called dark matter) which may shed light on quantum gravity.
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Barkana argues that interactions between dark matter and normal matter can explain the radio signature.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dark matter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of dark matter
1979
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See words that rhyme with dark matter Britannica.com: Encyclopedia article about dark matter
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