Re: Why not make a bunch (18) of them each with a big single mirror
You don't really understand the constraints of launching a telescope on a firecracker, do you ?
The best rockets we have at the moment cannot carry anything wider than 5 meters. JWST has an operational mirror surface of 20 meters.
How do you think that happened ?
It happened because brilliant engineers thought of and constructed a folded telescope capable of deploying itself a million miles away.
Hats off to them.
It's the first time Humanity has done this. First times cost.
The next JSWT will be cheaper, because we've already done it. But there will be no single mirror.
Not until we have rockets that are 21 meters in diameter.