When you buy through links on our articles, Future and its syndication partners may earn a commission. The frame of the dome that will house the world's largest telescope has been completed, marking ...

In 1999, Keck Observatory became the first in the world to develop and install an adaptive optics (AO) system on a ...

The mighty telescope is expected to see its "first light" by 2028. The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the ...

The frame of the dome that will house the world's largest telescope has been completed, marking another key milestone in the observatory's construction. The European Southern Observatory's (ESO ...

Very Large Telescope (VLT). VLT, which cost some $350 million to build in the 1990s ($840 million in today's dollars), is one of the world's most sensitive sky-watching instruments, capable of ...

A Soviet telescope called the BTA-6 beat it by one meter (39 inches) in 1975 — but, for the next 40 years, the largest ground-based telescopes were all built in the 4m to 5m (157 in to 197 in ...

Four bright lasers, the most powerful ever put on a telescope, fire into the night sky to create an artificial guide star for the European Southern Observatory's Very Large Telescope at the ...

Very Large Telescope (VLT). VLT, which cost some $350 million to build in the 1990s ($840 million in today's dollars), is one of the world's most sensitive sky-watching instruments, capable of ...

A massive $10 billion renewable energy complex proposed just a few miles from the European Southern Observatory's Very Large Telescope in Chile could severely disrupt observations with increased ...