"SpaceX's focus on reusable technology has slashed costs – the company says it can get an astronaut to the space station for $20m, versus $70m charged by Russia for a seat on a Soyuz rocket.
SpaceX is testing reusable prototype rockets that can return to Earth intact, rather than burn up in the atmosphere.
If successful, rockets could be reused like aeroplanes, cutting the price of a space mission to just $200,000, for fuel."
This is amazing.