Even the closest stars are trillions of kilometres away through interstellar space. CrowdScience listener Allan wants to know if and how our spacecraft could ever bridge that gap. Show more
Discover 11,128,835 listings and 280,367 playable programmes from the BBC
Even the closest stars are trillions of kilometres away through interstellar space. CrowdScience listener Allan wants to know if and how our spacecraft could ever bridge that gap. Show more