Dark Matter

Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe. Dark matter is called "dark" because it does not appear to interact with the electromagnetic field, which means it does not absorb, reflect, or emit electromagnetic radiation and is, therefore, difficult to detect. Various astrophysical observations – including gravitational effects which cannot be explained by currently accepted theories of gravity unless more matter is present than can be seen – imply dark matter's presence. For this reason, most experts think that dark matter is abundant in the universe and has had a strong influence on its structure and evolution. The primary evidence for dark matter comes from calculations showing that many galaxies would behave quite differently if they did not contain a large amount of unseen matter. Some galaxies would not have formed at all and others would not move as they currently do.

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The Vera C. Rubin Observatory will help astronomers investigate dark matter, continuing the legacy of its pioneering namesake

Dark dwarfs lurking at the center of our galaxy might hint at the nature of dark matter

Dark Dwarfs lurking at the center of our Galaxy might hint at the nature of dark matter - EurekAlert!

Can one vanishing particle shatter string theory — and explain dark matter?

Physicists Close In on the Fifth Force That Could Unlock the Mystery of Dark Matter

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Dark Matter ‘Droplets’ Could Solve Multiple Cosmic Mysteries

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Escaping cosmic strings: How dark photons could finally work as dark matter

The Universe is Filled With Natural Telescope Lenses. Roman Will Use Them to Study Dark Matter

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