Answer
The answer is the International Space Station (ISS), a modular space station in low Earth orbit. It is a joint project of five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada). The ISS serves as a microgravity research laboratory in which crew members conduct experiments in biology, human biology, physics, astronomy, materials science, and meteorology.