Why can’t we fly into space in an aeroplane?
All objects, even aeroplanes, are glued to the surface of the Earth by using gravity. If you wanted to get away this unseen force, you would have to journey at a velocity of at least 40,000 kilometres per hour (25,000 miles per hour). Only space shuttles are designed to achieve this speed. A combination of liquid hydrogen fuel and liquid oxygen is burned beneath high pressure to assist the shuttle’s rockets reach this speed and push it out of the Earth’s atmosphere into orbit.
