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Up a bit

Up a bit

作者:檀湛鳊  时间:2019-03-06 14:20:00  人气:

A European rocket delivered nearly a billion dollars’ worth of satellites to the wrong address last week. The Ariane 5 launcher deposited them in an orbit more than 18,000 kilometres lower than planned, possibly because of a fuel leak. Engineers hope that the $850 million Artemis, an experimental communications satellite from the European Space Agency, can get to its intended orbit with its ion propulsion thrusters, which require less fuel than normal thrusters. “The status of the satellite is excellent,” said one representative at a press conference on Friday. The Japanese Bsat-2B, which was also on board,