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Credit & Copyright: European Southern Observatory  
  
Explanation:
What is the largest telescope in the world?  In the optical,   
this title was  
long held by the   
Hale 200-inch,   
and is presently held by the   
Keck telescopes in   
Hawaii.  But an even larger optical telescope is being built.  
Dubbed the   
Very Large Telescope   
(VLT), the European Southern Observatory  
(ESO) is building four 8.2-meter mirrors in   
Chile   
which together will act as a single telescope with a mirror diameter of over  
16-meters. The first of these   
telescopes   
should be completed in 1997, and all four should be completed  
and working together sometime in the year 2000. The   
VLT   
will use   
active   
optics to create sub-arcsecond   
resolution.  This, combined with the  
enormous light-gathering power, will allow astronomers to explore dim  
objects in our   
Galaxy and the   
early universe.   
  
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: optical - VLT - telescope
Publications with words: optical - VLT - telescope
See also:

