Trip to Mars would likely exceed radiation limits for astronauts<p><a href="http://news.yahoo.com/trip-mars-likely-exceed-radiation-limits-astronauts-000023588.html"><img src="http://l3.yimg.com/bt/api/res/1.2/nBPK925VPhEp47vCA4SdkQ--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9ODU7dz0xMzA-/http://media.zenfs.com/en_us/News/Reuters/2013-05-31T000023Z_1_CBRE94U000V00_RTROPTP_2_SPACE-RADIATION.JPG" width="130" height="86" alt="Handout NASA composite image shows a self-portrait of NASA's Mars Curiosity rover" align="left" title="Handout NASA composite image shows a self-portrait of NASA's Mars Curiosity rover" border="0" /></a>By Irene Klotz CAPE CANAVERAL, Florida (Reuters) - Radiation levels measured by NASA's Mars Curiosity rover show astronauts likely would exceed current U.S. exposure limits during a roundtrip mission to Mars, scientists said on Thursday. The rover landed on Mars in August to search for habitats that could have supported past microbial life. Results taken during Curiosity's eight-month cruise to Mars indicate that astronauts would receive a radiation dose of about 660 millisieverts during a 360-day roundtrip flight, the fastest travel possible with today's chemical rockets. ...</p><br clear="all"/>
Source: Trip to Mars would likely exceed radiation limits for astronauts (http://news.yahoo.com/trip-mars-likely-exceed-radiation-limits-astronauts-000023588.html)