After more than 50 years, a solar telescope in New Mexico is being pulled down, after liquid mercury from the bearing that let its 250-ton optical system turn was found inside the tower. Crews found the metal on January 5. - Space Daily
science 2026/09/11 03:00:14

After more than 50 years, a solar telescope in New Mexico is being pulled down, after liquid mercury from the bearing that let its 250-ton optical system turn was found inside the tower. Crews found the metal on January 5. - Space Daily

Source:Space Daily
Author:None

A half-century-old innovation—liquid mercury that let a massive telescope glide frictionlessly—has become an environmental hazard too risky to remediate.