Illustration of a neutron star -- the core remains of a star once bigger than the Sun yet now small enough to fit within the Washington Beltway -- containing densely packed matter. (Credit: Image courtesy of NASA)ScienceDaily (May 6, 2009) — Research by a theoretical physicist at Indiana University shows that the crusts of neutron stars are 10 billion times stronger than steel or any other of the earth's strongest metal alloys.Charles Horowitz, a professor in the IU College of Arts and Sciences'