At first, the skin turns red in the area of the infection, and a tender lump develops. After four to seven days, the lump starts turning white as pus collects under the skin. If the infection spreads to the deeper tissues of the skin, then it becomes an abscess or furuncle.
The International Space Station cruises at about 17,500 mph. The International Space Station has an average elevation of about 220 miles when orbiting Earth. Every hour and a half, the International Space Station completes an orbit around Earth.
Building the International Space Station. The International Space Station weighs almost 400 tonnes and covers an area as big as a football pitch. It would have been impossible to build the Space Station on Earth and then launch it into space in one go - there is no rocket big enough or powerful enough. To get round this problem the Space Station was taken into space piece-by-piece and gradually built in orbit, approximately 400 km above the Earth's surface.