This artist’s rendering shows a night view of the Extremely Large Telescope in operation on Cerro Armazones in northern Chile. The telescope is shown using lasers to create artificial stars high in the atmosphere. Image credit: ESO/L. Calçada.

A new record nears: the world’s largest telescope prepares for completion

The ELT, at 39 meters in diameter, will dwarf everything that’s ever come before.

Ethan Siegel
Sep 20, 2017 · 9 min read

“There are so many people who are arguing or fighting over issues which don’t have much relevance. We must all realise it is not worth it. It’s like being in the whirlpools which are always present behind