NASA’s Rossi X-ray Timing Explorer
NASA hails now-departed Rossi X-ray observer
NASA’s Fermi satellite detects first gamma-ray pulsar in another galaxy
Researchers using NASA’s Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. Known as PSR J0540-6919, the object sets a new record for the most luminous gamma-ray pulsar known. The pulsar lies in the outskirts of the Tarantula Nebula in the Large Magellanic Cloud, a small galaxy that is located 163,000 light-years away.