Because you have to pump energy in to make the fuel
The energy source on Mars is going to be solar panels (they covered that in the talk) or potentially if there's the will for it a nuclear source.
I'll leave you to figure out the source of the energy for the process on Earth.
( , Wed 28 Sep 2016, 10:22, Share, Reply)
The energy source on Mars is going to be solar panels (they covered that in the talk) or potentially if there's the will for it a nuclear source.
I'll leave you to figure out the source of the energy for the process on Earth.
( , Wed 28 Sep 2016, 10:22, Share, Reply)