Revealing cosmic secrets
Major order for the world’s largest telescope
The 39-meter main mirror of the Extremely Large Telescope (ELT) will be composed of 798 ZERODUR® glass-ceramic segments in the future. The European Southern Observatory (ESO) has awarded SCHOTT the contract to supply a total of 949 mirror substrates, including spare parts. ZERODUR® has thus once again been confirmed as the standard material for mirror substrates for the world’s largest telescopes.
How a small piece of glass makes our boldest space missions possible
Cameras built into space orbiters and probes take photographs of nearby celestial bodies in stunning detail. These images, taken in extreme conditions millions of miles from Earth, show us the geographical features of planets, moons, and comets. But these photos might not exist without a specialty glass lens made of radiation-resistant glass.