Dark Matter Pushback
Through gravitational lensing, astronomers suggest the mysterious material uses frictional force.
By Liz Kruesi
Nov 30, 2015 6:00 AMNov 14, 2019 9:58 PM
Astronomers took advantage of this gravitational lensing to study the dark matter within galaxy cluster Abell 3827 (above), where a distant blue galaxy's light spirals around four galaxies. | NASA/ESA/ESO
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