ESO telescopes have provided an international team of astronomers with the gift of the third dimension in a plus-sized hunt for the largest gravitationally bound structures in the universe—galaxy clusters. Observations by the VLT and the NTT complement those from other observatories across the globe and in space as part of the XXL survey—one of the largest ever such quests for clusters.
from Astronomy News – Space News, Exploration News, Earth Science News, Earth Science http://ift.tt/1P4SChz
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