7 votes

Why telescope mirror glass shipped as randomly broken chunks of a constant size in cardboard boxes?

The material used for the mirror is indeed E6 Borosilicate manufactured by Ohara corporation as pointed out by @notovny. The fabrication process of a borosilicate glass honeycomb mirror has remained ...
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5 votes
Accepted

Claim that 30-m class telescopes will have resolution far superior to Hubble: true?

Adaptive optics, as it says on the GMT website: One of the most sophisticated engineering aspects of the telescope is what is known as “adaptive optics.” The telescope’s secondary mirrors are ...
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3 votes

Claim that 30-m class telescopes will have resolution far superior to Hubble: true?

The latest adaptive optics systems now allows diffraction limited images from the 8 meter Very Large Telescope in the visible spectrum. So it seems reasonable that with continued improvements this ...
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  • 39
3 votes

Claim that 30-m class telescopes will have resolution far superior to Hubble: true?

The claims that you have seen refer to the possibility of attaining near diffraction-limited images using adaptive optics. Both telescopes will feature wavefront sensors that can apply corrections to ...
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  • 114k

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