James Webb Space Telescope Transport
This is the STTARS - Space Telescope Transporter for Air Road and Sea. Inside is the test, or pathfinder, backplane. The backplane is the spine of the telescope, the structure that will support the primary mirror segments. The pathfinder was unpacked into the cleanroom. Over the next few months, we will install 2 spare primary mirror segments and the spare secondary mirror onto the pathfinder. It will then be shipped to Johnson Space Center to test in Chamber A.
Image credit: NASA/Chris Gunn
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Taken on July 18, 2014