Deep space voyages to 'seek out new life' could be made possible by new rocket thrusterA new rocket thruster could enable "never-ending" voyages into deep space by using any type of metal as fuel.
Source: Deep space voyages to 'seek out new life' could be made possible by new rocket thruster (https://news.sky.com/story/deep-space-voyages-to-seek-out-new-life-could-be-made-possible-by-new-rocket-thruster-13222988)