James Webb Telescope on Smarter Everyday
This is a rather long (at 53 minutes) video, but it has some fascinating bits of information about the heat shield deployed by the James Webb Space Telescope. This video focuses on how to precisely measure the dimensions of the heat shield, so that other scientists could model the properties of the shield in diffusing heat away from the delicate instruments in and on the telescope. Really cool tech used to take these measurements, including a laser with a spinning mirror that could blind you fairly quick....