The Hubble Space Telescope’s Finest Photos
Now that the telescope has received its final upgrades, we look back on Hubble's most memorable images from space
- By Joseph Caputo
- Smithsonian.com, May 06, 2009
(Courtesy of NASA)
The Earth’s gravitational pull is strong enough to hold its atmosphere and moon in place. The Sun’s gravity draws together the eight planets and numerous asteroids. But that’s nothing compared to the pull of a black hole, which is so powerful that light cannot escape. A black hole exists in the heart of our galaxy, and possibly all galaxies. This Hubble photograph shows dozens of galaxies bound together by the gravity of a supermassive black hole famous among astronomers for generating the most powerful outburst seen in the universe.