If the James Webb Space Telescope (JWST) investigates tiny and bright galaxies in the early universe, it may be able to to shine a light on dark matter — the universe's most mysterious stuff.
Such is the conclusion reached by scientists from the University of California, who ran a simulation of the cosmos that tracks the formation of small galaxies — starting as far back as shortly after the Big Bang. This appears to have upped the ante for the JWST.
