If NASA returns to the moon in 2020 as planned, astronauts will step out in a brand-new space suit. It will give them new mobility and flexibility on the lunar surface while still protecting them from its harsh environment. The suit will also be able to sustain life for up to 150 hours and will even be equipped with a computer that links directly back to Earth. To infinity and beyond: David Clark Company, in partnership with Oceaneering International, is designing a new U.S. space suit for missions to the space station, moon, and Mars. It has interchangeable parts, so the arms, legs, boots, and helmet can be switched. The first configuration, shown here, is designed for launch, descent, and emergency activities, while the second design is meant for lunar exploration. The new design will also let astronauts work outside of the International Space Station (ISS) and will be suitable for trips to Mars, as outlined in NASA's program for exploration, called Constellation. "The curre...