[/caption] Soft Gamma-ray Repeaters (SGRs) are strange and relatively rare objects, with only five known to exist (four in the Milky Way and one in the Large Magellanic Cloud.) Each is between 10 and 30 km across, yet contains about twice the mass of the Sun. SGRs are collapsed cores of large stars that have … Continue reading "XMM Newton Zeroes in on Zombie Star"