Martin Kessler, head of ESA's science operations department, sends the final command to the Herschel space telescope from the European Space Operations Center in Darmstadt, Germany.
Credit: ESA
Ground controllers put Europe's Herschel Space Observatory to sleep Monday (June 17), turning off the infrared observatory after squeezing every bit of engineering value from the spacecraft since it ceased scientific work in April.
From Space.com
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