A quicker way to re-aim can be to use some produced available electricity totemporarily give an included suspended sphere mass some spin. This will cause the telescope etc. to then slowly turn in the opposite direction. When aimed as wanted, simply halt the sphere mass's spin. This halts the slow opposite direction temporary telescope turning.
Thus once where wanted in each new telescope orbit, no need for any ion jets propellant matter supply. Exploit Solar radiation for wanted fine view aim adjustments, then soon use the converted electricity for having new encoded collected images transmitted to astronomers.
This new almost free robotic production of lots of big telescopes lets more and more of them be made and spread all around our Solar system. Astronomers would much adore any team having such telescopes made, to send here their fine quality high resolution bright images. So the investors group responsible for the 2 high settlements orbiting Earth decided they could safely afford to nicely have this good scheme started, thanks once more to very low cost robotic construction under very capable programmed computer control.
There are probably more than 170,000,000,000 galaxies in the observable universe. Dwarf galaxies may have as few as 10 million stars [=10^7 where ^ indicates an exponent], while giant galaxies may have a hundred trillion (10^14). Our Milky Way galaxy has some 300,000,000,000 stars, many which we are interested in observing. Big telescopes also permit observing stars in other galaxies.
Thus it's very helpful to astronomy to have ever more telescopes in nearby space studying our universe. Having them robotically produced is far cheaper than being made by human workers and expensively rocketed up off Earth. And such robotic production lets lots more new telescopes be most usefully made much bigger than anything rocketed off Earth.
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