Can you believe that humans have continuously lived in space for 15 years? From 1998 to 2011, five different space agencies representing 15 countries assembled the International Space Station (iss), the largest structure ever built in space. Today humans are still living and work in the orbital laboratory. Today, November 2, 2015, marks the 15th anniversary of continuous human presence onboard. Happy anniversary to space station! Thank you for working off the Earth, for the Earth and inspiring us to journey beyond! Pictured here, voluminous clouds envelope Earth at #dusk in this image taken by the crew of the International Space Station. An arm of the stations massive solar array frames the Earth observation. Beautiful! Credit: NASA #15YearsOnStation #ISS #SpaceSation #Earth #space #solarpower #partnerships #aerialview #NASA #astronauts #bigdeal #journeytomars #adastra