The Sky Tonight

July 02, 2014

Rosetta's comet 'sweats' two glasses of water a second
Paris (ESA) Jul 01, 2014
ESA's Rosetta spacecraft has found that comet 67P/Churyumov-Gerasimenko is releasing the equivalent of two small glasses of water into space every second, even at a cold 583 million kilometres from the Sun. The first observations of water vapour streaming from the comet were made by the Microwave Instrument for Rosetta Orbiter, or MIRO, on 6 June, when the spacecraft was about 350 000 kilometres from the comet. Since the initial detection, water vapour has been found every time MIRO has been point ... read more

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