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Astronomy, Black Holes, galaxies

“Eye of Sauron” Galaxy Used For New Method of Galactic Surveying

28 Nov , 2014 by Matt Williams

Determining the distance of galaxies from our Solar System is a tricky business. Knowing just how far other galaxies are in relation to our own is not only key to understanding the size of the universe, but its age as well. In the past, this process relied on finding stars in other galaxies whose absolute […]

active galactic nuclei, NASA, NGC 4151, supermassive black hole, The Eye of Sauron, W.M. Keck Observatory

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