Expedition 1 was the first long-duration mission on the International Space Station (ISS) and a significant milestone in human space exploration. The crew, consisting of Commander William Shepherd from the United States and Flight Engineers Yuri Usachev and Sergei Krikalev from Russia, was launched aboard the Soyuz TM-31 spacecraft. Their mission commenced with a launch from the Baikonur Cosmodrome in Kazakhstan and concluded with their rendezvous with the ISS on November 2, 2000. The crew's arrival was a historic moment, as it established the ISS as a continuously inhabited platform for extensive research and international cooperation in space. During their stay, the crew focused on various scientific experiments and technology demonstrations, paving the way for future missions. Daily life aboard the ISS included not just research but also regular maintenance and administrative tasks essential for the station's operations. Shepherd, Usachev, and Krikalev spent roughly four months aboard the ISS, becoming the first crew to conduct long-term missions in this unique environment. Their collaboration represented the culmination of years of planning and partnership between American and Russian space agencies, marking a new era of cooperation in human spaceflight.As a demonstration of the commitment to sustained human presence in space, Expedition 1 ushered in a tradition of continuous occupancy of the ISS, promoting not only scientific advancement but also fostering international ties and peaceful cooperation in outer space. The lessons learned from this mission have influenced the future design of space habitats and the ongoing research conducted in microgravity. The subsequent series of expeditions have continuously built upon the research initiated by Expedition 1, allowing astronauts from various nations to contribute to a wide range of scientific pursuits while aboard the space station.