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NRAO Home > Press Releases > Graphics: Astronomers Find Enormous Hole in the Universe |
Graphics: Astronomers Find Enormous Hole in the Universe![]() Illustration of the effect of intervening matter in the cosmos on the cosmic microwave background (CMB). On the right, the CMB is released shortly after the Big Bang, with tiny ripples in temperature due to fluctuations in the early Universe. As this radiation traverses the Universe, filled with a web of galaxies, clusters, superclusters and voids, it experiences slight perturbations. In the direction of the giant newly-discovered void, the WMAP satellite (top left) sees a cold spot, while the VLA (bottom left) sees fewer radio galaxies. CREDIT: Bill Saxton, NRAO/AUI/NSF, NASA Medium-resolution JPEG (278 KB) High-resolution TIFF (34.3 MB) ![]() Left: A 25-degree region of the Cosmic Microwave Background
emission around the region of the WMAP cold spot (circled). The colors
represent very small variations (parts in 100,000) around the average
temperature of 2.7 degrees above absolute zero, with blue colors being
colder. Data are from NASA's WMAP satellite. CREDIT: Rudnick et al., NRAO/AUI/NSF, NASA Above Image Without Telescope Images(114 KB) Back to Press Release![]() Home | Contact Us | Directories | Site Map | Help | Policies | Search Modified on Wednesday, 05-Sep-2007 10:02:15 EDT |