Eyes on the sky

A roster of new and proposed telescopes

E-ELT
Full name: The European Extremely Large Telescope
Mirror: 42 meters diameter
Timeline: Projected to open in 2018
Projected cost: €1 billion
Basic mission: largest ground-based optical/near-infrared telescope
Location: Possible sites in Chile, Argentina, Canary Islands, Morocco
Online: E-ELT Homepage – ESA


GMT
Full name: Giant Magellan Telescope
Mirror: 24.5 m
Timeline: 2018 completion
Basic mission: Next-generation telescope; large collecting area and high image quality
Location: Las Campanas Observatory in Chile
Online: GMT Homepage


TMT
Full name: Thirty Meter Telescope
Mirror: 30 m
Timeline: Expected to start operation in 2017
Basic mission: Great view of early universe; work with the planned James Webb Space Telescope
Online: Thirty Meter Telescope Homepage

Pan-STARRS
Full name: Panoramic Survey Telescope & Rapid Response System
Mirror: 1.8