Getting into space is hard, not to mention expensive. Only a few people go every year. What if, instead of rocket propulsion, you could just hop on a space elevator? It sounds far fetched but for 10 ...

"The idea of a space elevator is to build a tower that stretches beyond geosynchronous orbit (GEO) ... and is anchored in place by centrifugal force. Robotic 'climbers' would be able to ride up and ...