Cosmic Mystery: Missing Dwarf Galaxies | Video

For 20 years, computer models have been telling astrophysicists there should be many more dwarf galaxies. New research shows the dwarfs are whipped around so fast by gravity that their gas matter is stripped off and they shrink away.
credit : / Alejandro Benítez Llambay / Leibniz Institute for Astrophysics Potsdam
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