Thursday, March 5, 2015

Galaxy Cluster Abell 1689 and A1689-zD1

Galaxy Cluster Abell 1689 and A1689-zD1
Click on the image for full resolution (13.6 MB)

This spectacular view from the Hubble Space Telescope shows the rich galaxy cluster Abell 1689. The huge concentration of mass bends light coming from more distant objects and can increase their total apparent brightness and make them visible. One such object, A1689-zD1, appears in this picture - although it is still so faint that it is barely seen. New observations with ALMA and ESO's VLT have revealed that A1689-zD1 is a dusty galaxy seen when the Universe was just 700 million years old.
Image Credit: NASA; ESA; L. Bradley (Johns Hopkins University); R. Bouwens (University of California, Santa Cruz); H. Ford (Johns Hopkins University); and G. Illingworth (University of California, Santa Cruz)
Image enhancement Jean-Baptiste Faure

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