article_snippet: the journey of several hundred million miles takes about nine months, one-way, and a manned mission will likely in total take about three years.
article_snippet: In total a manned mission would last three to four years, which poses major problems, such as exposure to radiation .
article_snippet: Based on the team’s calculations, the team found that the total mission time poses serious problems to a potential manned mission.
article_snippet: In total a potential manned mission will last three to four years, which is ‘very demanding’ and ‘almost impossible’ according to Dr Bertolami.
article_snippet: obstacles in travel and in the technology itself, and the mass budgets for a mission are immense.
highlights_snippet: In total a manned mission would last three to four years, which poses major problems, such as exposure to radiation .
  