Let the comet game begin

摘要

"I'm feeling relief, elation and now excitement," says the European Space Agency's Mark McCaughrean. "We have a mission." McCaughrean was one of the team who spent all of Monday waiting for a signal from 800 million kilometres away. At 18.18 GMT it came, confirming that the comet-chasing Rosetta spacecraft has woken up after more than two years of hibernation.