Dr. J and the Worlds Biggest Telescope

Published: Jan. 13, 2015, 6 a.m.

Joe Liske, host of Hubblecast, is also the top scientist on the European Southern Observatory\u2019s European Extremely Large Telescope (E-ELT), now under construction on a Chilean mountaintop. \u201cDr. J\u201d tells us what this largest ever telescope will help us discover.