Planetary Society analysed the feasibility and cost of missions . Crewed mission to explore the Martian moon Phobos in 2033 first stage . will lead up to a crewed mission on the lunar Planet in 2039 . Report says missions fall within earth 's human space exploration budget .
Planetary Society analysed the feasibility and cost of missions . Crewed mission to orbit the Martian moon Phobos in 2033 first step . will lead up to a crewed landing on the Red Planet in 2039 . Report says missions fit within NASA 's human space exploration budget .