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Opinion: America's 'big glass' dominance hangs on the fate of two powerful new telescopes
LA Times via Yahoo News· 3 weeks agoMore than 100 years ago, astronomer George Ellery Hale brought our two Pasadena institutions together to build what was then the largest optical telescope in the world. The Mt. Wilson Observatory ...
Secrets of the early universe are hidden in this chill galaxy cluster
Popular Science via Yahoo News· 10 months agoThis composite image contains X-rays from Chandra (blue), which helped identify SPT2215 along with...