Can humans survive on Mars? Scientists fear RADIATION threatens NASA Mars missions NASA astronauts who could one day head to Mars will be exposed to incredibly high doses of radiation – a risk that could jeopardise the safety of future Mars missions. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:What These Medical Journals Don’t Reveal: Top Doctors’ Ties to IndustryTrilobites: Seeking Clues to Longevity in Lonesome George’s GenesListen to the Winds Blowing on MarsNASA asteroid WARNING: 360-FOOT-wide monster asteroid on 'Earth approach' TOMORROWSix Michigan Doctors Charged in $464 Million Insurance and Opioid SchemeA ‘Honking-Big’ Cave in Canada Lures Geologists to Its Mouth