Space/Science — HabitableZone

Space/Science » in reply to I don't know....

re: I don't know....

Jacob said:
"By the way! The Mars Express scientists deduced the amount of methane in the martian atmosphere to be....about 10 parts per billion.
10 parts per billion is not a heck of a lot."


For comparison purposes could you give the quantity of methane in the Earth's atmosphere?

Johannes

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