"If you want to take the stairs and walkways from the entrance of the ELT's dome all the way up to the top, you need about 30 minutes." ...

The original construction plan proposed a telescope with a 100-meter diameter mirror, initially named the Overwhelmingly Large Telescope. However, the team realised that the design would be too ...

and the 42-meter European Extremely Large Telescope—a scaled-down version of the 100-meter Overwhelmingly Large Telescope, which was tabled at the planning stage when its projected budget turned ...