About half the size of a football field and 21 stories tall, the largest optical telescope ever constructed will use almost 1,000 mirrors to hunt for exoplanets--and maybe even
unlock the secrets of spacetime.
By Bjorn CareyPosted 12.17.2007 at 2:00 am 1 Comment
Follow the Light
The PRIMARY MIRROR collects starlight and reflects it onto MIRROR A, which sends it through the hole in MIRROR C onto MIRROR B. The light then bounces onto the surface of MIRROR C, onto MIRROR D and into the DETECTOR.