3 ms·
By now, it's well-known that HST was based on spy satellite designs via the mirror-making technology, as you say. See under "size and mass" at: https://en.wiki
by mturmon 4y ago
By now, it's well-known that HST was based on spy satellite designs via the mirror-making technology, as you say.
See under "size and mass" at: https://en.wikipedia.org/wiki/KH-11_KENNEN https://en.wikipedia.org/wiki/KH-11_KENNEN
According to that page, NASA moved the primary mirror diameter from 3.0m to 2.4m to match the already-developed mirror-making technology.
- TchoBeer 4y agothe NRO is the craziest US government agency. iirc all their workers are contracted and all their expenses are highly classified. About the KH-11, trump accidentally tweeted an image from one of them (see https://www.forbes.com/sites/jonathanocallaghan/2019/09/01/trump-accidentally-revealed-the-amazing-resolution-of-u-s-spy-satellites/?sh=732cee8c3d89 https://www.forbes.com/sites/jonathanocallaghan/2019/09/01/t...) and its resolution was an international incident. This technology was developed in the 70s. The NRO has sci-fi technology.