Hubble isn't the only telescope - 05/20/17 04:10 PM
Hubble isn't the only telescope. In fact its successor James Webb Space Telescope should be ready to launch next year.
Chris Gunn explains that
Chris Gunn explains that
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in preparation for testing, the 'wings' of the mirror (which consist of the three segments on each side) were spread open. This photo shows one fully deployed wing, and one that is moments from being fully deployed. An engineer observes the move.