A year in News... ...and Pictures: April 2006 – March 2007
Astronomers have found that spiral galaxies are not randomly oriented in space. They appear to be preferentially aligned. The dramatic results come from a careful study of two huge galaxy surveys, the Sloan Digital Sky Survey and the Two-Degree Field Galaxy Redshift Survey, combined with precise locations of known voids, large spaces lacking in bright galaxies.
KeywordsBlack Hole Dark Matter White Dwarf Hubble Space Telescope Dwarf Galaxy
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