Cryogenic testing from 1964 to the James Webb Space Telescope Greenbelt MD (SPX) Dec 01, 2015 - The men in this photo from 1964 are not on a trip through the Arctic wilderness - in fact, they're inside a facility at NASA's Goddard Space Flight Center in Greenbelt, Maryland. They bundled up in furs and ski masks to work in a small cryogenic chamber called the Low Temperature Optical Facility (LTOF). The chamber was built at Goddard in the 1960s to test the optics of the Orbiting Astro ... more

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