News Dark Energy Found Stifling Growth in Universe For the first time, astronomers have clearly seen the effects of "dark energy" on the most massive collapsed objects in the universe using NASA's Chandra X-ray Observatory. Astronomers have tracked how dark energy has stifled the growth of galaxy clusters and combined this with previous studies. By doing so, scientists have obtained the best clues yet about what dark energy is and what the destiny of the universe could be. Full Story More News: NASA Supercomputer Shows How Dust Rings Point to Exo-Earths NASA's Swift Catches Farthest Ever Gamma-Ray Burst "Naked-Eye" Gamma-ray Burst Was Aimed Squarely at Earth News Archive Special Feature Featured Scientist: Dr. Duilia de Mello You don't have to have a telescope as a child to develop an interest in astronomy. Dr. Duilia de Mello grew up without one in Brazil, but she was inspired by the moon just the same. 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.