BBC3 年
James Webb Space Telescope's golden mirror in final test
The technological marvel that is the James Webb Space Telescope (JWST ... To do this, it's been given a 6.5m-wide, golden mirror that engineers are now checking one last time.
National Geographic news23 天
The world's largest space telescope just got an unexpected new role: asteroid hunter
A technician stands before six gold-plated mirror segments for the James Webb Space Telescope (JWST) mirror. The JWST's infrared viewing capability allows it see through much of the dust that ...
BBC3 年
James Webb Space Telescope extends secondary mirror
it will bounce back into the heart of the observatory whatever the main mirror sees. James Webb telescope: Sun shield is fully deployed World's biggest space telescope leaves Earth A $10bn machine ...
GIZBOT2 年
Why Does James Webb Space Telescope Use Golden Mirrors?
Telescope mirrors require some kind of metal coating to reflect as much light as possible. JWST uses gold mirrors to catch UV and visible light emitted by early luminous objects. Secondly ...