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Mars Pole Holds Enough Ice To Flood Planet  
User currently offlineOceansWorld From , joined Dec 1969, posts, RR:
Posted (7 years 4 months 2 weeks 1 day 20 hours ago) and read 946 times:

Mars's southern polar ice cap contains enough water to cover the entire planet approximately 36 feet (11 meters) deep if melted, according to a new radar study.

http://news.nationalgeographic.com/news/2007/03/070315-mars-water.html

Although Mars is much smaller than Earth with a diameter 4,222 miles compared to the 7,926 miles of our own home planet, that's still pretty interesting.

Cheers.

8 replies: All unread, jump to last
 
User currently offlineYellowstone From United States of America, joined Aug 2006, 3071 posts, RR: 4
Reply 1, posted (7 years 4 months 2 weeks 1 day 19 hours ago) and read 915 times:

Anyone up for some terraforming?


Hydrogen is an odorless, colorless gas which, given enough time, turns into people.
User currently offlineBlackbird From , joined Dec 1969, posts, RR:
Reply 2, posted (7 years 4 months 2 weeks 1 day 19 hours ago) and read 905 times:

That has me wondering... will the oceans only rise 30 or 300 feet if the ice-caps melt here?

Andrea Kent


User currently onlineKlaus From Germany, joined Jul 2001, 21411 posts, RR: 54
Reply 3, posted (7 years 4 months 2 weeks 1 day 18 hours ago) and read 892 times:

Quoting Yellowstone (Reply 1):
Anyone up for some terraforming?

You'd still be one atmosphere short for that...!


User currently offlineArmitageShanks From UK - England, joined Dec 2003, 3611 posts, RR: 15
Reply 4, posted (7 years 4 months 2 weeks 1 day 18 hours ago) and read 892 times:

Would the thin atmosphere cause that water to evaporate relatively rapidly?

User currently onlineKlaus From Germany, joined Jul 2001, 21411 posts, RR: 54
Reply 5, posted (7 years 4 months 2 weeks 1 day 18 hours ago) and read 882 times:

Quoting ArmitageShanks (Reply 4):
Would the thin atmosphere cause that water to evaporate relatively rapidly?

As far as I understand it, the almost nonexistent pressure would severely lower the boiling point indeed, but the extreme cold would make it freeze and snow out, which is probably how it came to rest in its current state and place... It's all a matter of certain threshold temperatures and pressures.

You'd probably need the atmosphere first to get a proper greenhouse effect going (stronger than on earth because of the larger distance to the sun) before the water would be able to melt and stay liquid on the surface.


User currently offlineTraveler_7 From Estonia, joined May 2000, 540 posts, RR: 0
Reply 6, posted (7 years 4 months 2 weeks ago) and read 797 times:

Quoting Klaus (Reply 5):
You'd probably need the atmosphere first to get a proper greenhouse effect going (stronger than on earth because of the larger distance to the sun) before the water would be able to melt and stay liquid on the surface.

I do not think that OceansWorld's idea is change climate on Mars. Most probably the original point was that there is enough water to support the colony or at least some permanent base?


User currently onlineKlaus From Germany, joined Jul 2001, 21411 posts, RR: 54
Reply 7, posted (7 years 4 months 1 week 6 days 20 hours ago) and read 770 times:

Quoting Traveler_7 (Reply 6):
I do not think that OceansWorld's idea is change climate on Mars. Most probably the original point was that there is enough water to support the colony or at least some permanent base?

Sure, that is the only practical conclusion at this point. Terraforming is certainly not a realistic option at this point; It's merely a theoretical consideration.


User currently offlineBanco From United Kingdom, joined Oct 2001, 14752 posts, RR: 53
Reply 8, posted (7 years 4 months 1 week 6 days 20 hours ago) and read 768 times:

Quoting Klaus (Reply 5):
You'd probably need the atmosphere first to get a proper greenhouse effect going

This could be a job for Ryanair. All that hot air to begin with, then....  Wink



She's as nervous as a very small nun at a penguin shoot.
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