Tag: dwarf spheroidal galaxies
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Mapping the dark matter in the tiniest galaxies
Galaxies are beautiful but very messy objects, and it seems the more wonderful the galaxy, the more complicated it is. At their most grand, galaxies are full of stars, clouds of gas, dust…and of course dark matter, the invisible substance that helps to bind everything together gravitationally. In a spiral galaxy like the Milky Way,…
Galileo's Pendulum 