Letters to the Editor Humans Letters from the April 12, 2008, issue of Science News By Science News April 7, 2008 at 2:54 am - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print Dark star In “From Dark Matter to Light: New models of galaxy formation show the gastro in physics” (SN: 3/22/08, p. 186), Ron Cowen says that gas is where the action is since dark matter predominantly responds to only gravity.