DescriptionFlight spare of OAO-3's X-ray mirror.jpg
English: A flight spare of the grazing incidence mirror built for OAO-3 (Copernicus). The mirror was part of the X-ray telescope built by University College London. It is now held in the collections of the Science Museum, London.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue
Captions
Add a one-line explanation of what this file represents