Sediments from the Curiosity rover and experiments using tanks of gas and laser beams helped reveal how water continued to flow on Mars after the planet lost its atmospheric carbon dioxide.
Comparative Climates of Terrestrial Planets II (CCTP2 ): Understanding How Climate Systems Work; Moffett Field, California, 8–11 September 2015
The Curiosity rover, one of NASA's flagship missions, analyzes Martian geology, geochemistry, climatology, and radiation to assess whether Mars could have supported microbial life.
Planets that orbit close to their stars might lose their atmospheres along with any chance of life, but new models show a way in which these planets may retain their atmospheres and habitability.
Scientists are amazed by new images that show Pluto's atmosphere and diverse geology.