The mission will include collecting scientific data important to future human exploration of our solar system. (ibtimes.com)
The large cosmic ray - induced radiation dose at the surface may also prove problematic for future human exploration of Mars (e.g. Saganti et al. 2004). (swsc-journal.org)
It will also assist in preparing for further future unmanned missions, including a Mars Sample Return mission, and possible future human exploration. (politics.co.uk)