With NASA, the flight to Mars will take place much shorter period of 8 months now. In a recent speech at the plant Aerojet Rocketdyne, Charles Bolden, NASA says the head of the agency is looking identify new solutions to shorten the time for flights to Mars (with current technology is about 8 months). the propulsion technology such as solar energy has also taken into account, but NASA is still looking for more unique solutions like spacecraft with nuclear missiles. In the past few years, the astronauts to Mars are getting a lot of attention, but mainly from the project "crazy" as Mars One, the success of such programs or ideas Curiosity "heavyweights" of Elon Musk to "invade" the red planet. the main problem today is human-operated missile with liquid fuels today it takes about 8 months or longer to complete can a fly from earth to Mars. If we can cut the time in half would save considerable costs related to water, food, and from which the spacecraft will also reserve a more fuel for a return trip. Not only that, the less time astronauts in outer space much more to avoid the impact of radiation on the crew much. However, finding a better propulsion engines used materials liquefied today is not an easy task. NASA has studied a range of different technologies from many decades. Calculated from 2010 to the present, the aerospace agency US have tried no less than 41 different methods to produce propulsion. One of the solutions is considered the most promising (at least in the next short time) as propulsion by solar photovoltaic cells. Aerojet Rocketdyne has just won a contract to make up use ion propulsion for NASA solar. The advantage of this engine is that it will take advantage of the inexhaustible energy from the sun instead of using liquefied material today. Currently, Aerojet Rocketdyne is working with many companies and organizations to find solutions to how a solar cell obtained the highest energy source. According to Space.com, Bolden also mentioned the possibility to use nuclear missiles heat: ie missile uses a nuclear reactor to heat the air, then the air pressure according to the tube will result in boosting engine performance. Earlier, NASA has spent a lot of energy to the nuclear missile programs named Nerva from 50 to 60 years of the last century but ended in 1972 due to not obtain positive results. Bolden wanted NASA "pump" more money for research programs propulsion for spacecraft because he believes the current technology we absolutely can do better than what we are.
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