Aspiring astronauts start 200-day test in China’s self-sustaining ‘space station’
Four students will act as guinea pigs, living and working inside sealed bunkers where they’ll recycle everything from plants to urine

Sealed behind the steel doors of two bunkers in a Beijing suburb, Chinese university students are trying to find out how it feels to live in a space station on another planet, recycling everything from plant cuttings to urine.
They are part of a project aimed at creating a self-sustaining ecosystem that provides everything humans need to survive.
Four students from Beijing University of Aeronautics and Astronautics entered the Lunar Palace-1 on Sunday with the aim of living self-sufficiently for 200 days.
They said they were happy to act as human guinea pigs if it meant getting closer to their dream of becoming astronauts.