NASA JPL releases a overview of several studies of measurements made by the Curiosity Mars rover during the time since it landed in August of 2012: NASA Curiosity: First Mars Age Measurement and Human Exploration Help – NASA Jet Propulsion Laboratory

In a little more than a year on the Red Planet, the mobile Mars Science Laboratory has determined the age of a Martian rock, found evidence the planet could have sustained microbial life, taken the first readings of radiation on the surface, and shown how natural erosion could reveal the building blocks of life. Curiosity team members presented these results and more from Curiosity in six papers published online today by Science Express and in talks at the Fall Meeting of the American Geophysical Union in San Francisco.

This illustration depicts a concept for the possible extent of an ancient lake
inside Gale Crater. The base map combines image data from the Context
Camera on NASA’s Mars Reconnaissance Orbiter and color information
from Viking Orbiter imagery. 

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Here’s an interesting post  about clouds forming in low lying areas on Mars: The Mists of Mars – The Planetary Society

NASA / JPL / Malin Space Science Systems / Bill Dunford
The Clouds of Mars: A composite of global images of Mars taken on
November 29-30, 2013 by the Mars Reconnaissance Orbiter. Water ice
clouds cling to the summits of the major volcanoes, and fill the
giant canyon of Valles Marineris (the long, horizontal feature in the south).