How long did it take to build the iss?

What angle is the earth tiled at and what effect does this has? What does tiny drops of water mean? When did the Skylab explode in space? Why can't bats see in day light? What was the first US space rocket launched in 1958? Does the sun have a shadow? What is halleys comet made of? How many star systems are there in the Milky Way galaxy? What is a black diamond called? If a new moon is seen today in approximately how many days will a full moon be seen? Would a catapult work in zero gravity? What is the central glowing region that is brighter than the area around it known as? Whether the sun is matter? What was the name of the ship that took Neil Armstrong Buzz Aldrin and Michael Collins to the moon? Where is a good site to learn about zodiac? What is scanning in text? Is the image viewed through the eyepiece inverted? What is the name of the path that the Earth follows as it orbits around the sun? Why was a moon Artemis symbol? Which is smallest 1AU 1 light-second a star or a planet?