2013年在火星上的好奇号
This undated graphic provided by NASA shows the Mars 2020 Rover. NASA plans to make oxygen _ a key rocket fuel ingredient _ on Mars early next decade. Space agency officials unveiled seven instruments they plan to put on a Martian rover that would launch in 2020, including two devices aimed at bigger future Mars missions. The $1.9 billion rover will include an experiment that will turn carbon dioxide in the Martian atmosphere into oxygen. NASA Associate Administrator Bill Gerstenmaier said it could be then used as half of what’s needed for rocket fuel and for future astronauts to breathe. Taking fuel to Mars for return flights is heavy and expensive. (AP Photo/NASA)
08/01/2014
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