New Mars Find

A meteorite found in Morrocco in 2011 has been shown to come from Mars, and it opens a window to Mars' climatic history.

A new study finds a much higher water content in this meteorite than in other meteorites from Mars.  It is also older-- 2.1 billion years to 1.3 billion.  In chemical composition, it's similar to rocks that have been studied using NASA's Mars rovers.  Researchers think the rock was originally on the surface of Mars and blown into space by a volcanic eruption.  The high water content is more evidence that at some point in the past Mars was warmer and wetter than it is today.