| NASA Image of the Day | |
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| Cosmic Zoom Lens | Fri, 29 Feb 2008 00:00:00 EST |
| A massive cluster of yellowish galaxies is seemingly caught in a spider web of eerily distorted background galaxies in the left-hand image, taken with the Advanced Camera for Surveys (ACS) aboard NASA's Hubble Space Telescope. The gravity of the cluster's trillion stars acts as a cosmic "zoom lens," bending and magnifying the light of the galaxies located far behind it, a technique called gravitational lensing | |
| NASA Image of the Day | |
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| Bursting With Stars and Black Holes | Mon, 19 Nov 2007 00:00:00 EST |
| A growing black hole, called a quasar, can be seen at the center of a faraway galaxy in this artist's concept | |