On the weekend of October 26-28, about 100 people attended the third annual MarsWeek conference, which is held every fall at the MIT campus in Cambridge MA. This year’s conference focused on past, present and future Mars Society projects. Several participants in the Devon Island station described their experiences, and concepts for research at the new Utah station were presented. The new Mars Gravity initiative took center stage, with discussion among design team members from several universities, including MIT, Embry-Riddle and CalTech. Jim Benson, CEO of SpaceDev, discussed the process of developing commercial interest in space exploration. Workshops explored a wide range of cultural, scientific and engineering issues related to the exploration of Mars.