Photo taken by an instrument aboard NASA’s Mars Reconnaissance Orbiter shows dark, narrow, streaks on the surface of Mars that scientists believe were caused by flowing streams of salty water. Researchers say the latest observations strongly support the longtime theory that salt water in liquid form flows down certain Martian slopes each summer.
Photo taken by an instrument aboard NASA’s Mars Reconnaissance Orbiter shows dark, narrow, streaks on the surface of Mars that scientists believe were caused by flowing streams of salty water. Researchers say the latest observations strongly support the longtime theory that salt water in liquid form flows down certain Martian slopes each summer. NASA
Photo taken by an instrument aboard NASA’s Mars Reconnaissance Orbiter shows dark, narrow, streaks on the surface of Mars that scientists believe were caused by flowing streams of salty water. Researchers say the latest observations strongly support the longtime theory that salt water in liquid form flows down certain Martian slopes each summer. NASA

Humans can reach Mars in small, Apollo-like steps

October 12, 2015 10:00 AM

UPDATED October 12, 2015 05:32 PM

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