How Do The Biggest Telescopes Work?

Article written: 17 May , 2012
Updated: 23 Dec , 2015
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Located high in the mountains of Chile’s Atacama Desert, the enormous telescopes of the European Southern Observatory have been providing astronomers with unprecedented views of the night sky for 50 years. ESO’s suite of telescopes take advantage of the cold, clear air over the Atacama, which is one of the driest places on Earth. But as clear as it is, there is still some turbulence and variations to contend with — especially when peering billions of light-years out into the Universe.

So how do they do it?

Thanks to adaptive optics and advanced laser calibration, ESO can negate the effects of atmospheric turbulence, bringing the distant Universe into focus. It’s an impressive orchestration of innovation and engineering and the ESO team has put together a video to show us how it’s done.

We all love the images (and the science) so here’s a look behind the scenes!

Video: ESO

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2 Responses

  1. Member
    squidgeny says

    Great video. Incredible instrument!

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