Video: NASA Salutes The International Space Station On Its 15th Anniversary

Today marks the 15th anniversary of the International Space Station, a program that has successfully proven that countries can work together to achieve things in space. In the case of the ISS, more than 15 countries have contributed to the project and over the past decade and a half, a lot research has been conducted in orbit above our planet. To celebrate this special occasion NASA has released the video below which is a celebration of one of our greatest achievements in space exploration to date.