Bryan Laubscher, one of the world's leading astrophysicists, who study the physics and chemistry of the stars, planets, etc, is developing an invention called the Mars Elevator. To form a picture of this, you may want to imagine the story of Jack and the Beanstalk (《杰克与魔豆》). This is the story of a boy who grew a beanstalk that reached the heavens. Jack climbed the stalk and entered another world. The space elevator is similar but of course much more high-tech and better yet, it is real!

    Astrophysicists are designing a steel-like cable (缆绳) that will be connected to a platform (平台) in the ocean. This cable is designed to be pulled up into space, where it will then be connected to a space station. People will be able to travel up and down this elevator by the year 2020. There will be a number of space elevators so that both tourists and businesses can travel into space. To get there, space tourists will simply travel to the nearest ocean elevator entrance. The trip up into space will take about a week. When they arrive, space tourists will be inside a space station and will be able to stay there. There are other alternatives, too. Astronomers think it will be easy to travel from the space station to the moon, where space tourists can stay in a moon hotel — which is now being designed.

    The future looks bright for space tourists. It also looks bright for industry and scientists. Mining companies will travel to space to mine elements (元素) that are rare on Earth. Energy scientists will travel to space to set up space solar panels, which will collect a huge amount of energy from the sun and shoot it back to Earth where we can use it to heat our homes and meet our energy needs.