Fall 2012 Download Issue Fall 2012 Fall 2012 | Cover Story Out There The world's largest optical telescope will enable scientists to watch the history of the universe—and trace our cosmic roots—with unprecedented precision. Two GSAS alumni want to be the ones to build it. Recent Colloquy Issues See All Issues Image Summer 2026 Special Issue: America at 250 Image Winter/Spring 2026 Download Winter/Spring 2026 Image Summer/Fall 2025 Download Summer/Fall 2025 PDF