Now though, a workable fusion rocket is actually becoming a reality. Funded by NASA's Innovative Advanced Concepts Program, this rocket is obviously on a much smaller scale than the one suggested for Project Daedalus, but it works in a very similar way. It's also a lot more feasible.
ANALYSIS: Nuclear Propulsion for Solar System Domination
So feasible, in fact, that it's being tested this year. As of last month, some of the components of the system have already been tested. The researchers developing the rocket have managed to heat deuterium plasma up to the right temperature for fusion, and they've managed to create powerful enough magnetic fields to to the job. Their plans are currently to combine those two technologies to test them properly later this year, and eventually scale them up for use.
For now, it remains to be seen if nuclear fusion can actually be created in this way. Controlled nuclear fusion is still very much a work in progress, technologically speaking. All the same, the fusion rocket shows a lot of promise, and may reduce the cost of space travel too. Maybe if fusion power can be harnessed this way to propel spacecraft, it might make exploration of our solar system a lot more easily within our reach!