- Mar 2019
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Business Insider
This is very thought provoking findings. It makes myself wonder what role dark matter plays in our lives.According to Keck Observatory, both DF2 and DF4 belong "to a relatively new class of galaxies called ultra-diffuse galaxies." They're roughly the same size as the Milky Way but have far fewer stars, "making them appear fluffy and translucent, therefore difficult to observe."
Despite the lack of dark matter in these galaxies, the researchers say their existence bolsters the dark-matter theory, backing up the idea that dark matter is independent of "normal" matter.