sep 092012
 
Mars's Dramatic Climate Variations are Driven by the Sun

  On Mars’s poles there are ice caps of ice and dust with layers that reflect to past climate variations on Mars. Researchers from the Niels Bohr Institute have related the layers in the ice cap on Mars’s north pole to variations in solar insolation on Mars, thus established the first dated climate history for [continue reading]

jun 212012
 
The Size of Martian 'Snowflakes' Calculated

  Mars’ carbon dioxide ‘snowflakes’ are about the size of red blood cells. Researchers have determined the size of CO2 snow particles on Mars, depicted in this artist’s rendering as a mist or fog that eventually settles to the surface as carbon dioxide snow. Image credit: NASA, Christine Daniloff/MIT News In the dead of a Martian [continue reading]