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Contact: Francis Reddy
francis.j.reddy@nasa.gov
301-286-4453
NASA/Goddard Space Flight Center

Components of a Gravitational Lens System

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Caption: This movie illustrates the components of a gravitational lens system known as B0218+357. Different sight lines to a background blazar result in two images that show outbursts at slightly different times. NASA's Fermi made the first gamma-ray measurements of this delay in a lens system.

Credit: NASA's Goddard Space Flight Center

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Related news release: NASA's Fermi makes first gamma-ray study of a gravitational lens


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