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 HELIOS solar telescope La Silla Observatory. HELIOS solar telescope (centre left) attached to the catwalk of European Southern Observatory's (ESO) telescope at La Silla Observatory, Chile, at sunset. HELIOS was installed in April 2018 to feed sunlight via fibre optics to the HARPS (High Accuracy Radial velocity Planet Searcher) spectrograph at La Silla. The dome of the decommissioned Coude Auxiliary Telescope (CAT) can also be seen (right).

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Photo credit: © ESO/X. Dumusque/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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