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mfb- t1_iu3ezc6 wrote on October 28, 2022 at 7:18 AM

Reply to comment by tommos in Chinese researchers create the world's largest silicon carbide aspherical mirror by tommos

They made a 4 meter mirror with a hole in the center while the telescope will have a 2 meter mirror with an off-axis design (no hole in the center). But the material is the same in both cases.