U of Az starts 5th of 7 Magellan Telescope mirrors.

[MarathonMike]

It takes 3 years to grind these 28 foot mirrors precisely enough to be used in a telescope. The Magellan telescope is scheduled to complete by 2023. It will be able to resolve images 10 times sharper than the Hubble.

UA Casts 5th Mirror for Giant Magellan Telescope

 

[william the wie]

sounds good.