The Fermi Gamma-ray Space Telescope has discovered a pulsar, a dead star, that pulses with gamma rays, NASA announced. That will permit scientists to learn more about how such collapsed stars work, according to Peter Michelson, principal investigator at Stanford University for Fermi's Large Area Telescope in Palo Alto, Calif. The gamma-ray-only pulsar lies within a supernova remnant known as CTA 1, which is located about 4,600 light-years away in the constellation Cepheus. Its lighthouse-like beam sweeps Earth's way every…
NASA Space Telescope Finds Pulsar With Gamma Rays
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