This image may not be used to state or imply the endorsement by NRAO, AUI or NSF of any company or product M81 galaxy cluster, composite radio-optical

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This image may not be used to state or imply the endorsement by NRAO, AUI or NSF of any company or product M81 galaxy cluster, composite radio-optical image. This view shows clouds of hydrogen gas (red and green) surrounding the galaxies, discovered in two sets of radio observations. Initial observations by the Very Large Array (VLA) are in green, with additional observations by the Green Bank Telescope (GBT) in red. The gas clouds are thought to be remnants of earlier interactions among the galaxies forming this cluster. The optical data is from the Schmidt telescope. M81 is million light years from Earth, in the constellation of Ursa Major. The radio observations were made in 1992 (VLA) and 2003 (GBT).

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Size: 3028px × 3028px
Photo credit: © Chynoweth et al., NRAO/AUI/NSF/Digital Sky Survey/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, 1992, 2003, 3031, array, astronomical, astronomy, astrophysical, astrophysics, bank, bodes, clouds, cluster, composite, galaxies, galaxy, gas, gbt, green, hydrogen, intergalactic, large, m81, ngc, optical, radio, schmidt, space, telescope, universe, visible, vla