NASA is planning a medical evacuation for the International Space Station (ISS) on January 14, marking the first such mission in the station's history. The crew, including four astronauts, may return to Earth as early as Thursday due to a medical emergency. The evacuation is not related to any injuries, and the crew member in question is stable and not in need of emergency medical attention. The astronauts, part of NASA-SpaceX Crew 11, have been on their mission since August 1, and their return was already scheduled for the coming weeks. American astronauts Mike Fincke and Zena Cardman, along with Japan's Kimiya Yui and Russia's Oleg Platonov, will return to Earth, while American Chris Williams will remain aboard the ISS to maintain a U.S. presence. The ISS, continuously inhabited since 2000, serves as a testbed for research supporting deeper space exploration, including eventual missions to Mars. The station is set to be decommissioned after 2030, with its orbit gradually lowered until it breaks up in the atmosphere over Point Nemo, a remote part of the Pacific Ocean known as a spacecraft graveyard.