RT @alexwitze: EELT = European Extremely Large Telescope, 39m aperture, to be built in Chile 2014-2024, cost to @ESO 1.1 billion euros. #aas223
RT @alexwitze: EELT = European Extremely Large Telescope, 39m aperture, to be built in Chile 2014-2024, cost to @ESO 1.1 billion euros. #aas223