alt Hacker News"just an infrared telescope"
how about you go make yourself conversant with "just" the technical requirements of the main cryogenic pump onboard, leaving out the rest of the thermal management systems for whatever remains of your life, which will have to be long in order to fail honorably.
Sorry, I didn't mean it's easy to build, far from it :). I meant "just infrared" in terms of frequency — why not go further? Is there a gap between the current infrared and radio on Earth?