NASA to Look at Climate Change - On Mars

The U.S. space agency, NASA, expects to launch its next mission to Mars on Monday, sending an orbiter to look at the red planet's upper atmosphere. Scientists hope that MAVEN, which stands for Mars Atmosphere and Volatile Evolution, can help them better understand what happened to cause Earth's neighbor to lose its surface water and its atmosphere to thin. The causes of the dramatic climate changes on Mars over billions of years - from warm with liquid water on its surface to...

© La Voix de l'Amérique - lundi 18 novembre 2013