In fact, in the basement of Princeton's sprawling Frick Chemistry Laboratory, Kasdin is already working on a test bed: a meter - wide, 75 - meter - long tube with a camera at one end, a laser at the other and a scaled - down starshade in between. (scientificamerican.com)
Before Cash became entangled with starshades, the 63 - year - old scientist had a productive career designing equipment for the Hubble Space Telescope, the Far Ultraviolet Spectroscopic Explorer, the XMM - Newton observatory and other big - ticket astronomy missions. (discovermagazine.com)