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NASA's Dark Energy Mission cleared for lift-off

点击量:   时间:2017-09-04 02:01:08

Beyond Einstein? It nearly didn’t get beyond mission control. Facing cutbacks, NASA has picked dark energy as the subject of the first of its Beyond Einstein missions due to begin in 2009. Forced to choose between several missions, including an observatory for studying gravity waves, and the Black Hole Finder probe, the agency asked the US National Research Council for recommendations. The winner, the Joint Dark Energy Mission (JDEM),