The University of Arizona

One-of-kind...two mirrors in one!

LSST has left the building!

LSST Cast March 2008, Completed May, 2015!
Did You Know?
This telescope will revolutionize the way we look at the sky

"A Perfect Mirror"

View the Mirror Making Process

See how the mirrors for the GMT are created.
Did You Know?
Each of the GMT Mirrors will weigh roughly 10 tons

GMT3 Next Phase: Rear-surface grinding

GMT Telescope -- astronomical engineering at its finest
Did You Know?
The GMT will have a resolving power 10 times greater than the Hubble Space Telescope!

CASTING GMT4 NOW! October - December, 2015

20 tons of E-6 borosilicate glass reached high-temp September 18, 2015
Did You Know?



  • Mirror Lab Renamed in Honor of Richard F. Caris

    The longtime supporter of the UA's astronomy department donated $20 million last December, backing the University's role in building the Giant Magellan Telescope.

    An impactful, $20 million gift supporting the...

  • UA Making Biggest Mirrors for World's Biggest Telescope

    Arizona Public Media July 2015 | Technicians at the University of Arizona are building seven glass mirrors for the Giant Magellan Telescope, an earthbound instrument scheduled to begin...

  • Colossal telescope coming into focus July 2015 | We all know the impossible triangle of projects. Trying to go fast and cheap at the same time rarely ends up with a good product and, more often than not, is not as fast as planned anyway. LBT was supposed to...