of the ISS Orbiting Earth for 25 Years

The International Space Station (ISS) is the largest and most advanced orbital laboratory ever built by humanity. First launched in 1998, the ISS has been orbiting Earth for more than 25 years, serving as a powerful symbol of international cooperation among NASA (United States), Roscosmos (Russia), ESA (Europe), JAXA (Japan), and CSA (Canada). Over the past quarter-century, the ISS has: Orbited Earth about 1516 times per day at an altitude of roughly 400 km above the surface. Hosted astronauts continuously since 2000, making it one of the longest-inhabited human outposts in space. Supported more than 3,000 scientific experiments in fields such as biology, physics, astronomy, medicine, materials science, and technology development for future missions to the Moon and Mars. Stood as a remarkable engineering achievement, assembled piece by piece in orbit from modules contributed by multiple nations. The ISS also serves as a symbol of global collaboration, even during times of geopolitical tension. It has played a crucial role in scientific research, education, and inspiring new generations to explore space. After 25 years in orbit, the ISS remains one of humanitys greatest accomplishments in space exploration and a stepping stone toward future commercial space stations and deep-space missions.