SCIENCE - Lowell Observatory's Clark Telescope closes for renovation on January 1

Lowell Observatory's iconic Clark Telescope is about to undergo a much-needed facelift. After 117 years of constant use, the instrument will be closed for more than a year as engineers and technicians carefully remove telescope components and repair or replace poorly operating parts ...

http://phys.org/news/2013-12-lowell-observatory-clark-telescope-renova