These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Friday, March 8, 2013
Lens Flare
Today's Astronomy Picture of the Day is a wonderful example of gravitational lensing: using the gravity of an object, such as a galaxy, to see other objects well beyond the reach of our current telescopes. Abell 68 (1.2 billion light years away) brings even further objects into view. "Mouseover" the image for some labels to help you identify the objects.
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