PDA

View Full Version : Why is Mars So Dry?



Fraser
2005-Sep-09, 08:25 AM
SUMMARY: Since Earth and Mars were probably formed much the same way; through the accretion of rocky material from the inner solar system, they should have roughly the same amount of water, but Mars is pretty much bone dry compared to the Earth. So what happened to make it so dry? Some scientists believe that Mars used to have the same amount of water as Earth, but it evaporated into space. Others believe that the Red Planet never had much water in the first place; that it started out as a collection of dry materials from the asteroid belt.

View full article (http://www.universetoday.com/am/publish/why_mars_so_dry.html)
What do you think about this story? post your comments below.