News Nature's Most Precise Clocks May Make "Galactic GPS" Possible Radio astronomers have uncovered 17 millisecond pulsars in our galaxy by studying otherwise unidentified sources detected by NASA's Fermi Gamma-ray Space Telescope. The astronomers discovered all these pulsars within a span of less than three months. Locating these hard-to-find objects so rapidly holds the promise of using them as a kind of "galactic GPS" to detect gravitational waves passing near Earth. Full Story More News: Suzaku Spies Treasure Trove of Intergalactic Metal COBE Satellite Marks 20th Anniversary News Archive Special Feature Featured Scientist: Dr. John Baker Understanding the extreme gravity in the merger of black holes -- as predicted by Einstein -- is what drives John's research. These mergers may be the most energetic of all astronomical events, briefly releasing energy at a rate 100 billion trillion times that of the Sun. Read more. Featured Scientist Archive Special Exhibit Satellite Showcase: Fermi Gamma-ray Space Telescope Fermi Gamma-ray Space Telescope is the latest high energy gamma-ray observatory launched by NASA. It is designed to study energetic phenomena from a variety of celestial sources. Read more.