Long-term spaceflight not linked to major health risks: NASA `Twins Study´
(World News Science)

Washington: While it was previously thought that long duration spaceflight can affect the human body, even at the molecular level, new results from NASAs “Twins Study� has showed that there are no major warning signs and no reason to think humans cannot survive a two-and-a-half-year round-trip journey to Mars. As part of...