This new and incredibly deep image from Hubble shows the dim and diffuse galaxy NGC 1052-DF4. New research presents the strongest evidence yet that this strange galaxy is basically devoid of dark matter. (Credit: NASA/ESA/STScI/S. Danieli et al.)

stronomers have all but confirmed the universe has at least one galaxy that’s woefully deficient in dark matter. The new finding not only indicates that galaxies really can exist without dark matter, but also raises fundamental questions about how s