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Kepler Planet-Hunting Mission in Jeopardy - Universe Today
NASA’s Kepler telescope has lost its ability to precisely point toward stars, putting its exoplanet search in jeopardy. One of the reaction wheels –devices which enable the spacecraft to aim in different directions without firing thrusters – has failed. This is of grave concern because last year reaction wheel #2 failed, and now #4 has … Continue reading "Kepler Planet-Hunting Mission in Jeopardy"