Yep :) Other things melt and become liquids, but water is a pretty decent guess at this point. But a guess.
My brain went derp and said "CO2?" at first, but the C02 "ice" on Mars just sublimates in the summer right? There's no freakish liquid phase that I somehow missed?
My brain's a bit fuzzy, but IIRC liquid CO2 can only form under very high pressures... and Mars's atmosphere is much thinner than ours, so dry ice sublimates there at least as well as it does here.
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(no subject)
Date: 2011-08-05 04:41 pm (UTC)But it would be fucking neat if true.
(no subject)
Date: 2011-08-05 06:05 pm (UTC)My brain went derp and said "CO2?" at first, but the C02 "ice" on Mars just sublimates in the summer right? There's no freakish liquid phase that I somehow missed?
(no subject)
Date: 2011-08-05 07:18 pm (UTC)-- Steve's rooting for the brine theory, himself.