Computer simulations carried out by astronomers from the University of Groningen in collaboration with researchers from Germany, France and Sweden show that most of the (dark) matter beyond the Local Group of galaxies (which includes the Milky Way and the Andromeda galaxy) must be organized in an extended plane. Above and below this plane are large voids. The observed motions of nearby galaxies and the joint masses of the Milky Way and the Andromeda galaxy can only be properly explained with this “flat” mass distribution. The research, led by Ph.D. graduate Ewoud Wempe and Professor Amina Helmi, is published in Nature Astronomy.
Milky Way is embedded in a ‘large-scale sheet’ of dark matter, which explains motions of nearby galaxies
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When people encounter racism or discrimination, they don’t all respond in the same way. Some calmly challenge the remark, some file a complaint, others confront the offender aggressively—and many say nothing at all.This post was [...]
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