Space & Astronomy
Galaxies protected by dark matter
By
T.K. RandallMarch 14, 2009 ·
25 comments
Image Credit: NASA/ESA/ESO
The Hubble Space Telescope has revealed new evidence suggesting that galaxies are embedded in and surrounded by halos of dark matter, the mysterious form of invisible matter that scientists believe accounts for most of the universe's mass.
NASA's Hubble Space Telescope has uncovered new evidence that galaxies are embedded in and protected by halos of dark matter, the invisible form of matter that accounts for most of the universe's mass. Dark matter is invisible and nobody even knows what it is, but it is evident by the fact that galaxies hold together at all. Some unseen substance lurks in space — concentrated in galaxies — and generated gravity in amounts well beyond the visible matter."
Source:
MSNBC |
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