A Scar in the Cosmic Background (IMAGE)

NASA/Goddard Space Flight Center

A Scar in the Cosmic Background

Caption

Hubble observed one of most massive known galaxy clusters, RX J1347.5-1145, seen in this Picture of the Week, as part of the Cluster Lensing And Supernova survey with Hubble (CLASH). This observation of the cluster, 5 billion light-years from Earth, helped the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile to study the cosmic microwave background using the thermal Sunyaev-Zel'dovich effect. The observations made with ALMA are visible as the blue-purple hues.

Credit

ESA/Hubble & NASA, T. Kitayama (Toho University, Japan)

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