Current Events(Snow falls on Mars)

Nasa currently have a mission of going to mars, but only sent a little rover. The little rover detected snow, but the snow melted and evaporated before landing on the ground!It collected some samples of soil and detected that the soil was wet as if it had just rained.Bringing Nasa to the question of "Is mars suitable for life?"Also, They found calcium carbonate, a substance used to create clay.This identifies that there was water on Mars in the past.In conclusion, this this type of clay only forms in the presence of water and that mars might be favorable for life.Mars is starting to be a lot like earth.

http://www.nasa.gov/mission_pages/phoenix/news/phoenix-20080929.html