This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way,

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This image may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity ELT and Big Ben. Computer illustration comparing the size of the Elizabeth Tower (which houses Big Ben, left), London, UK, to that of the European Southern Observatory's (ESO) Extremely Large Telescope (ELT, right). The ELT is an astronomical observatory housing the world's largest optical/near-infrared extremely large telescope that is now under construction on top of Cerro Armazones in the Atacama Desert, Chile. It consists of a metre diameter segmented primary mirror and a metre diameter secondary mirror.

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Size: 6331px × 2760px
Photo credit: © EUROPEAN SOUTHERN OBSERVATORY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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