The International Space Station, the largest co-operative project ever carried out in science, turned 15 years old!

The International Space Station, the largest co-operative project ever carried out in science, turned 15 years old!

Here are some cool facts via https://twitter.com/NASA:
-The ISS travels an equivalent distance to the Moon and back in about a day.
-More than 136 space flights were conducted on 7 different types of launch vehicles to construct the ISS.
-68 countries have been involved in research aboard the ISS.
-There are 52 computers controlling the numerous systems on the ISS.
-The US solar array surface area on the ISS is large enough to cover 8 basketball courts.
-The ISS weighs almost 1 million pounds (including visiting spacecraft) and has more livable space than a 6-bedroom house.