NASA’s 2020 Plan for Mars Makes the Old New Again

The Curiosity rover is just four months into its primary two-year mission on Mars, and already NASA is planning sequels. The Agency announced yesterday plans for a series of Martian missions that will culminate in 2020 with the launch of a new robotic science rover based largely on Curiosity's design. » 12/05/12 1:40pm 12/05/12 1:40pm