A research team in Washington state is on its way to making a fusion rocket that could carry people to Mars in 30 days, NBC News reported.

Scientists spent much of the last century trying to harness fusion energy, but never succeeded. NASA funded this latest effort through its Innovative Advanced Concepts program, which the agency describes as a program for creative ideas that may be 10 years or more away from use on a mission. Phase II projects, such as this fusion rocket, received about $600,000 over three years.

The Washington team members include physicists from the University of Washington who say they've demonstrated all of the parts of their technology. They now need to combine the components into one experiment that creates energy.