MAVEN scientists to determined that the majority of the planet's air was lost to space.
NASA’s Mars Atmosphere and Volatile Evolution Mission (MAVEN) spacecraft measured light and heavy isotopes of argon in the Martian atmosphere, allowing scientists to determine that the majority of the planet’s air was lost to space. Click to enlarge.
Download in full resolution and text-readable PDF at: http://svs.gsfc.nasa.gov/12557
Read more: www.nasa.gov/press-release/nasas-maven-reveals-most-of-mars-atmosphere-was-lost-to-space
Image Credit: NASA/Goddard/University of Colorado Boulder