Next we have to worry about what we will ______. Frankly, I was really shocked to find out that NASA has this problem worked out. This is a scientist at ______named Michael Hecht. And he's ______this machine, Moxie. I love this thing. It's a ______fuel ______, essentially, that ______ the Martian atmosphere and ______ oxygen. And you have to remember that CO2 -- carbon dioxide, which is 96 percent of Mars' atmosphere -- CO2 is basically 78 percent oxygen.