Skywatch

  • September 7, 2006

    Episode 55: Supernova Mystery

    Download this episode

    Shownotes

    About 10,000 light years from Earth, embedded in heart of a "supernova remnant" — the remains of an exploded star — lies a stellar object unlike any ever seen in our galaxy. The object looks like a densely packed neutron star surrounded by a bubble of ejected stellar material, just what would be expected in wake of a supernova explosion. But observations by an orbiting x-ray satellite revealed a strange pattern of x-ray emissions. The object is less than 2,000 years old, but behaves like a neutron star that has been around for several million years old.