PHOTOS: World's Largest Telescope Unveiled

PHOTOS: World's Largest Telescope Unveiled
<< Previous   3 of 6   Next >>
An open slot in the telescope's dome exposes the top of the hexagonal steel structure that holds the GTC's mirrors.

In addition to preventing buildup on the surface of the observatory's sensitive mirrors, the large dome protects the telescope from wind turbulence and other vibrations that can affect image quality.

—Photograph by Pablo Bonet
 
NEWS FEEDS    After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed. After installing a news reader, click on this icon to download National Geographic News's XML/RSS feed.

Get our news delivered directly to your desktop—free.
How to Use XML or RSS




 

50 Drives of a Lifetime

Listen to your favorite National Geographic news daily, anytime, anywhere from your mobile phone. No wires or syncing. Download Stitcher free today.