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Where is the dark matter halo of the Milky Way thought to extend?
AstronomyDark Matter
Quick Answer
The Milky Way’s dark matter halo is thought to extend far beyond the visible disk of the galaxy. It likely reaches hundreds of thousands of light-years across.
The Full Story
The Milky Way is embedded in a massive halo of dark matter that cannot be seen directly. This halo extends well beyond the bright stars and gas in the galaxy’s disk, likely out to several hundred thousand light-years or more. Astronomers infer its presence from the rotation of the galaxy and the motions of satellite galaxies. The halo is crucial to the Milky Way’s total mass and structure.
Key Facts
1.Extends far beyond the visible disk
2.Likely hundreds of thousands of light-years across
3.Inferred from rotation and galaxy motions
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Suggested video title for this topic:
"The Milky Way is wrapped in an invisible halo of dark matter."