Nuclear fusion of light elements like hydrogen or helium would permit approaching the speed of light. It seems very attractive to refuel your space ships where the fuel is.

We have never succeeded in slowing down our nuclear fusion reactors.

Rocket scientists agree that we have about reached the limit of our ability to travel in space using chemical rockets. To achieve anything near the speed of light we will need a new energy source and a new propellant. Nuclear fission is not an option.

Our present nuclear fusion reactors are classified by the methods used to support the nuclear fusion reaction, which takes place at a temperature much hotter than the surface of the Sun.

The sun derives its energy from fusion reactions in which hydrogen is transformed into helium.

This is no job for a UN committee. It needs the same kind of unwavering dedication and the kinds of people that got us the first nuclear submarine and the first man on the moon.