Untypical vehicles and space journey methods.

1. A propulsion method based on atomic explosions of small atomic loads. Energy is transformed from nuclear energy to kinetic energy by heatproof dome and heatproof ropes attached to main crew vehicle compartment located in safe distance from explosion place. The entire vehicle is gaining great velocity as a result of continuous atomic detonation. Deceleration in nearness of destination planet will be obtained by rotation of entire vehicle about 180 degrees and the sequence of deceleration explosions to gain a right velocity to enter to orbit. However this method still seems to be some kind of technological myth considered only as a propulsion system still unreachable for current technology due to its economic and technological requirements.

2. Space elevator technology. Not available due to the lack of enough durable materials. 

3. WARP drive propulsion. A hypothetical subspace technology propulsion similar to Alcubierre's space-time compression-decompression technology, currently not available for our technology due to the lack of gravity field technology solutions to compress and decompress space in nearness of spaceship.   

4.  Negative vacuum pressure technology require negative energy due to obtaining negative space-time pressure completely out of reach of nowadays physic and technology. 

5. Gravity propulsion and antimatter reactor as a power source for spaceship. Since the antimatter particles can be only obtained in a very few amounts in accelerators (Tevatron, LHC) the antimatter use for industrial scale seems to be plausible only in scientists imagination and a mass production of antimatter is still a farewell future. A gravity propulsion seems to be also not considered seriously by most of scientists thus this propulsion should be probably in proper attention maybe at least in several hundreds of years when physics will reach a right knowledge level.

6. Wormhole technology. Space bending. As long as the science is not predicting and is not able to generating artificial static gravity field and harness proper energy to bending conventional space the technology seems to be distant future - no one knows how far distant form today science and technology abilities and if possible at all. The problem of theoretic approach is persisting due to not recognized space-time manipulation methods by current science and technology.