The space shuttle Endeavour lifted off last night on a journey to the International Space Station, where astronauts will install new equipment and fix a solar panel, Space.com reports. The crew of the ISS will double from three to six next year; ahead of that, the Endeavour crew is installing new bedrooms, another toilet, and a high-tech device that can recycle astronauts' urine into water. The shuttle is due to arrive tomorrow afternoon. (More Space Shuttle Endeavour stories.)