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Want to go to space? First, you must live in this dome for 2 years.

In 1991, four men and four women sealed the hatch on a 3.15-acre ecological ark located an hour north of Tucson, Arizona. They called the structure Biosphere 2 (Biosphere 1 being planet Earth, itself). Their scientific mission: to live inside their artificial ecosystem, removed from the rest of the world, for 24… » 6/04/13 1:40pm 6/04/13 1:40pm

Manned Mars mission plans include a radiation shield made of poop

Now that millionaire space tourist Dennis Tito has officially announced his intention to send a man and a woman on a round-trip journey to Mars in 2018, a few more details are trickling out about the Inspiration Mars project. One such detail is how the Inspiration Mars team plans to protect its astronauts from cosmic… » 3/02/13 2:00pm 3/02/13 2:00pm

Everything We Know About Dennis Tito's 2018 Human Mission to Mars

Dennis Tito wants to send humans to Mars. Earlier today, the millionaire space tourist announced more details on a mission that would see two astronauts set a course for the red planet in January 2018, perform a flyby (no orbital insertion or landing required) and head right back to Earth in the span of 501 days.… » 2/27/13 4:00pm 2/27/13 4:00pm