Should NASA Ditch Manned Missions to Mars?

SPACE.com
Should NASA Ditch Manned Missions to Mars?
NASA's Hubble Space Telescope snapped this shot of Mars on Aug. 26, 2003, when the Red Planet was 34.7 million miles from Earth. The picture was taken just 11 hours before Mars made its closest approach to us in 60,000 years.
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