Nuclear fusion could take us to Mars

Cheap, fast nuclear fusion may power the first human expedition to Mars.

Scientists in the US are building components of a fusion-powered rocket in a bid to overcome drawbacks of current technology.

Using existing rocket fuels, a round trip to Mars will take more than four years and cost more than US$12 billion for the launch alone, according to a NASA estimate.

A fusion-powered rocket is expected to be able to make round trips to Mars in as little as 30 days, and has substantially less expensive costs.

Read more at University of Washington