Your browser or your browser's settings are not supported. To get the best experience possible, please download a compatible browser. If you know your browser is up to date, you should check to ensure that javascript is enabled.
› Learn How
Vacuum spheres at NASA's Langley Research Center in Virginia have been dusted by a light fall of snow in this 1969 photo. The spheres housed wind tunnels that were part of Langley's Hypersonic Facilities Complex. Image credit: NASA