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Hubble observes shapes of more than 7000 faint background galaxies
Hubble observes shapes of more than 7000 faint background galaxies
Depicts: Galaxy Cluster CL0023+1654 Copyright: European Space Agency, NASA and Jean-Paul Kneib (Observatoire Midi-Pyrénées, France/Caltech, USA) Show in archive: true
Five days of observations produced altogether the 39 Hubble Wide Field and Planetary Camera 2 (WFPC2) images required to map the mass of the galaxy cluster CL0024+1654.