Celebrate the #SpaceStation20th With an Out-of-This-World Memory Match

It's official: As of today, humans have been on the ISS for 20 years! In that time, the station has established itself as a center for scientific research and space exploration. Since Nov. 2, 2000, 241 people from around the world have lived and worked on the International Space Station, in collaboration with 19 different countries. Far out!