🚀 HOW THE ISS WAS BUILT — A GIANT IN THE SKY 🌌 Orbiting 400 km above Earth, the International Space Station (ISS) is one of humanity’s greatest engineering achievements. But did you know it wasn’t built all at once? It was assembled piece by piece in space over more than a decade! Construction began in 1998, when Russia launched the first module, Zarya. Soon after, the U.S. added Unity, connecting nations and technology in orbit for the first time. Over 40 assembly missions followed — carried

609K views · 11K reactions | Take a tour of life aboard the International Space Station! Join NASA astronauts Nicole Mann and Kjell Lindgren as they guide you through station in celebration of 25 years of continuous human presence aboard the orbiting lab.  Watch the full tour: https://youtu.be/D9gUhAOQ0O4 | International Space Station | Facebook