Curiosity takes self-portrait, sniffs Martian air

Curiosity takes self-portrait, sniffs Martian air:

NASA’s Curiosity rover has taken a whiff of Martian air at the "Rocknest" site in Gale Crater. The robot explorer's Sample Analysis at Mars (SAM) instruments are now being used to measure the constituent elements of the atmosphere and their isotopes with the aim of providing insights into the history of the Red Planet and its chances of having once supported life... Continue Reading Curiosity takes self-portrait, sniffs Martian air