Our universe is a chaotic sea of ripples in space-time called gravitational waves. Astronomers think waves from orbiting pairs of supermassive black holes in distant galaxies are light-years long and have been trying to observe them for decades, and now they’re one step closer thanks to NASA’s Fermi Gamma-ray Space Telescope.
Click here for original story, NASA’s Fermi Hunts for Gravitational Waves From Monster Black Holes
Source: NASA Goddard Center