If humans ever do manage to get to Mars, an untold number of problems will have had to have been solved to do it.
From propulsion, life support, radiation and just actually landing there - there’s a lot to take care of.
But what kind of effect might this kind of journey have on the human body itself?
What kind of changes might we expect to take place?
Nicholas Brereton, a research fellow at the University of Montreal’s Plant Biology Research Institute joined Jonathan to discuss.
Also on the show, Jonathan is joined by Dr. Ruth Freeman and Dr. Shane Bergin to look at the science news stories of the week.