ASTROPHYSICS:
Ashes to Ashes: The Inner Lives of Neutron Stars
Robert Irion
CHICAGO, ILLINOIS--Powerful and unpredictable flares of energy called superbursts strike beneath the surfaces of a few special neutron stars--the dense, spinning corpses of stars that died in supernova explosions. Orbiting telescopes have spotted seven superbursts so far, spouting intense x-rays for hours. Even more compelling than the fireworks is the root cause: a thermonuclear flash of heavy elements, burning in ways that might occur nowhere else.