Satellite galaxies can help us understand dark matter’s nature
From Nature World News, May 20, 2020: Two studies have shown evidence of how a larger satellite galaxy can draw smaller ones into them as they get “trapped” into orbiting the Milky Way. Such an arrangement can inform astronomers and researchers about the nature of the formation of galaxies as well as insights into dark matter and its nature. Fermilab scientist Alex Drlica-Wagner is featured.