来自MSN1 个月
The mind-bending mirrors behind advanced technology
On a space mirror [as in the James Webb Space Telescope], it would be 2cm [0.75in]. On an EUV mirror, it would be 0.1mm,” he explains. This ultra-smooth mirror surface combined with systems that ...
Webb telescope snapped photo of huge world — in a distant solar system
The James Webb Space Telescope achieved a rarity — snapping ... along with the planets and moons in our solar system. - Giant ...