Mary Cassatt Tea painting
Edward Hopper Gas painting
Scientists say there's no way for astronauts to travel to Mars without recycling their own liquids and solids. The challenge is figuring out how.
Oct. 26 — So you want to go to Mars? Here’s something to think about.You’re going to have to eat and drink the same things, over and over again. What comes out of your body will have to go back in again, day after day after day.NASA estimates that it would take more than 13 tons of water, food and air to keep one person in space for one year. So a three-person crew on a two year mission to Mars would need to take along at least 78 tons of stuff just to stay alive.
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