This image may not be used to state or imply the endorsement by NRAO, AUI or NSF of any company or product Evolution of supernova 1993J. Radio telesco


This image may not be used to state or imply the endorsement by NRAO, AUI or NSF of any company or product Evolution of supernova 1993J. Radio telescope observations of the expanding shell formed by supernova SN 1993J between May 1993 (top left) and February 2000 (bottom right). During the explosive death of a large star, the outer layers are propelled outwards as the collapsing core rebounds. This supernova was discovered on 28 March 1993. It is around 11 million light years distant, in the constellation Ursa Major. Its relative closeness allows observation by radio interferometry with arrays such as the Very Large Array (VLA) and the Very Long Baseline Array (VLBA). The expansion has decelerated from 16,000 to 10,000 kilometres per second.


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Photo credit: © NRAO/AUI/NSF/N. BARTEL, M. BIETENHOLZ, M. RUPEN, ET. AL./SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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