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About This Image
Abell 1689 is one of the most massive galaxy clusters known. The gravity of its trillion stars, plus dark matter, acts like a 2-million-light-year-wide "lens" in space. The gravitational lens bends and magnifies the light of galaxies far behind it.
Credit: NASA, N. Benitez (JHU), T. Broadhurst (Racah Institute of Physics/The Hebrew University), H. Ford (JHU), M. Clampin (STScI), G. Hartig (STScI), G. Illingworth (UCO/Lick Observatory), the ACS Science Team and ESA
The members of the ACS science team are: H.C. Ford (JHU), G.D. Illingworth (UCO/Lick Observatory), N. Benitez (JHU), M. Clampin (STScI), G.F. Hartig (STScI), D.R. Ardila (JHU), F. Bartko (Bartko Science & Technology), J.P. Blakeslee (JHU), R.J. Bouwens (UCO/Lick Observatory), T.J. Broadhurst (Racah Institute of Physics, The Hebrew University), R.A. Brown (STScI), C.J. Burrows (STScI), E.S. Cheng (NASA-GSFC), N.J.G. Cross (JHU), P.D. Feldman (JHU), M. Franx (Leiden Observatory), D.A. Golimowski (JHU), C. Gronwall (Pennsylvania State University), L. Infante (Pontificia Universidad Catolica de Chile), R.A. Kimble (NASA-GSFC), J.E. Krist (STScI), M.P. Lesser (Steward Observatory), A.R. Martel (JHU), F. Menanteau (JHU), G.R. Meurer (JHU), G.K. Miley (Leiden Observatory), M. Postman (STScI), P. Rosati (European Southern Observatory), M. Sirianni (JHU), W.B. Sparks (STScI), H.D. Tran (JHU), Z.I. Tsvetanov (JHU), R.L. White (STScI/JHU), and W. Zheng (JHU)
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