It's not time to get out the sleds and shovels in the United States, but all the way over on Mars, snow may be falling on the south pole.
There appears to be snow falling on the Red Planet that is not made of water, however. This is frozen carbon dioxide, which can only exist at extremely low temperatures - namely, about -193 degrees Fahrenheit.
New data to be published in the Journal of Geophysical Research explores evidence for carbon dioxide snowfalls that come from clouds around the Martian south pole during the winter. The data comes from the Mars Reconnaissance Orbiter.
This is the only example of carbon-dioxide snow falling that we know about in the solar system, NASA said Tuesday.
We know about water-ice snow on Mars too from NASA's Phoenix Lander, which observed it in 2008.
Read more about this from NASA
"This is frozen carbon dioxide, which can only exist at extremely low temperatures – namely, about -193 degrees Fahrenheit."
I believe, that the author of the above article got -109.3F mistaken as -193F. Carbondioxide freezes between -108.7 and -109.3F (-78.2 to -78.5 °C)
At the atmospheric pressures of Mars (about 6 millibars), carbon dioxide freezes directly from vapor at about 148 K, or -125 C, or -193 F
All this science "knowledge" will not bring the forgiveness and grace of the Lord God. CO2 rain will be replaced by a rain of hellfire upon the sinners who feel lust in their perverted space cosmos. Romney will cut this misguided funding, and the rover will be turned into rosaries, my brothers.
Didn't Obozo cut NASA funding to begin with? I think you have your politicians mixed up!
Have another glass of Kool-aid Rein...
You are so diluted...You, Romney, and your God should sit in a garage together, shut the garage door turn on the car and kill yourselfs....its people like you that slow our evolution...Science is the key, and your probably mad because its already dis proven your bible and your boy Jesus...
What does Romney have to do with Rein's diluted remarks?
Hey I heard the space ship with the angels sent here to save good Christians is in orbit but you must hurry, they told me in order to get in the spaceship you will have to jump from the highest bridge you can find, God told me in person, don't dare question him ... so go hurry, will meet you up there....
Please do not ever offer your opiions again, The world will be a better place.
Mars composition is desert and dry ice, Hell frozen over.
The freezing point of CO2 is -109 F, not -193 F. Look it up on google.
The freezing and boiling points of any chemical is dependent on the pressure that it is under. Since the atmospheric pressure on Mars is so much lower than Earth's, CO2 will freeze at a lower temperature on Mars than on Earth.
the temp of -193 f? thats not so bad, isn't that normal temps in Canada.Lol
This is old news. We've known that Mars's south pole is covered with frozen carbon dioxide for a very long time now. We've seen the ice cap get bigger and smaller with the seasons, so we knew that it must "snow" frozen CO2 during the southern hemisphere's winter. This pretty picture is merely the first time we've gotten good, specific weather data – including the size of the ice grains – while it was happening.
Our next step on Mars is a "sample return" mission – a spacecraft that will bring some rocks and soil from Mars back to Earth, for detailed study. As far as I know, NASA isn't planning such a mission yet. >sigh<
Simple.Mars has a Co2 atmosphere.In cold areas some of it will change to ice.
Ice is made of water...now it we could convert CO2 to water that would be a trick.
We can't do that.If you split it you would get carbon and oxygen.You would need hydrogen for it to be turned into water.
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