The first three astronauts shuttled up to the International Space Station on Nov. 2, 2000. This week, NASA and other space agencies around the world celebrated 15 years of continuous inhabitance on the station. The astronauts currently living on the station shared a special meal as part of the celebration. The International Space Station, or ISS, has been used as a place to run experiments that will influence future space travel. In total, 220 people from 17 countries have lived on the station. The United States has sent the largest number of astronauts to the station, followed by Russia, Canada, and Japan. NASA hopes the space station will continue to run until 2024.
Photo of the International Space Station by NASA.