News NASA's Swift Survey finds 'Smoking Gun' of Black Hole Activation Data from an ongoing survey by NASA's Swift satellite have helped astronomers solve a decades-long mystery about why a small percentage of supermassive black holes emit vast amounts of energy. Full Story More News: Mysterious Cosmic 'Dark Flow' Tracked Deeper into Universe Nature's Most Precise Clocks May Make "Galactic GPS" Possible 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.