They Have A Wet One For You, Ctd

Readers react to the mystery of water on Mars:

Colder water runs to the top of the glass?

I tried to find anything on that but failed. I’d love to know what that’s about. Another:

Maybe its canels like the early astronomers thought? 🙂

Heh. Now this one makes a lot of sense:

Hmm. They seem fixated on the idea of water. Maybe it was another liquid altogether.

And, being too silly for words, I’ve read about LAKES on Titan, the largest moon of Mars, but this never occurred to me. From NASA:

Radar images from NASA’s Cassini spacecraft reveal many lakes on Titan’s surface, some filled with liquid, and some appearing as empty depressions.
Credits: Image credit: NASA/JPL-Caltech/ASI/USGS

Apart from Earth, Titan is the only body in the solar system known to possess surface lakes and seas, which have been observed by the Cassini spacecraft. But at Titan’s frigid surface temperatures — roughly minus 292 degrees Fahrenheit (minus 180 degrees Celsius) — liquid methane and ethane, rather than water, dominate Titan’s hydrocarbon equivalent of Earth’s water.

Mars ranges from 0 to -129 degrees Celsius, so perhaps methane and ethane would not be the replacements. I am not a chemist specializing in liquid forms of matter, so I have no idea how the low atmospheric pressure and ambient temperatures of Mars affects the possibility of other chemicals existing in liquid form. And do other liquids undergo an evaporation / precipitation cycle as we witness with H₂O? I recall reading about iron evaporating and precipitating in a theoretical scenario. From Space.com:

Violent storm clouds and molten-iron rain may be common occurrences on the failed stars known as brown dwarfs, new research suggests.

Astronomers used NASA’s infrared Spitzer Space Telescope to observe brown dwarfs, finding changes in brightness that they believe signify the presence of storm clouds. These storms appear to last at least several hours, and may be as tempestuous as the famous Great Red Spot on Jupiter.

“A large fraction of brown dwarfs show cyclical variability in brightness, suggesting clouds or storms,” study researcher Aren Heinze of Stony Brook University said …

Perhaps the comparison is inappropriate, though.

I like the idea, but have no way to evaluate it.