Non-Rocket Spacelaunch – Tether propulsion
Tether propulsion consists in using long, very strong cables (known as tethers) to change the velocity of spacecraft and payloads. The tethers may be used to initiate launch, complete launch, or alter the orbit of a spacecraft. This form of propulsion would be significantly less expensive than spaceflight using modern rocket engines.
Future Car Technologies
New cars are being developed in order to make them more sustainable, safer, more energy efficient, and less polluting. These won't exactly be the cars we've seen in science-fiction movies, but they should be a big improvement over what we have today.
Non-Rocket Spacelaunch – Space Elevator
Why non-rocket spacelaunch? Because the current chemical rockets are really expensive. In order to further explore outer space and establish a permanent human presence in space we need more cost efficient spacelaunch methods.