What Satellite Galaxies Can Teach us About Dark Matter

Satellite galaxies orbiting the Milky Way could help physicists test a new theory of dark matter

Dark matter is thought to make up roughly 85 percent of all matter in the observable Universe, but little is known about this mysterious — something. Satellite galaxies orbiting around the main mass of the Milky Way galaxy could help researchers unravel the one of the great mysteries of modern science — dark matter.

A new theory called self-interacting dark matter (SIDM) could explain the behavior of two small…

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Exploring the wonders of the Cosmos, one mystery at a time

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The Cosmic Companion

The Cosmic Companion

Writing about space since I was 10, still not Carl Sagan. Weekly video show, podcast, comics, more: www.thecosmiccompanion.net

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