A fresh analysis of a remarkably massive yet compact galaxy from the early universe suggests that dark matter interacts with itself. The galaxy, JWST-ER1, which formed just 3.4 billion years after the Big Bang, was first spotted last October in images snapped by NASA’s James Webb Space Telescope (JWST). At over 17 billion light-years from […]
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The faintest star system orbiting our Milky Way may be dominated by dark matter
A bizarre system of stars that is either an ancient cluster or the most dark-matter-dominated dwarf galaxy ever found is enticing astronomers who hope it could help explain how our Milky Way galaxy formed. Discovered to lie 30,000 light-years away by astronomers at the University of Victoria in Canada and Yale University in the United […]
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