Ｍｕｓｔ ｃａｎｃｅｌ ｍｙ Ｍａｒｓ ｔｉｃｋｅｔ

Ｔｈｉｓ　ｄｏｅｓ　ｎｏｔ　ｓｏｕｎｄ　ｇｏｏｄ：

Former NASA Payload Specialist James Pawelczyk told an Experimental Biology 2006 meeting Tuesday in San Francisco every cell in one's body could experience a high energy event with heavy metal ions during the 13- to 30-month Mars round trip.