A photo taken by an instrument aboard the Mars Reconnaissance Orbiter shows dark, narrow, 100-meter-long streaks on the surface of Mars that scientists believe were caused by flowing streams of salty water.
A photo taken by an instrument aboard the Mars Reconnaissance Orbiter shows dark, narrow, 100-meter-long streaks on the surface of Mars that scientists believe were caused by flowing streams of salty water. NASA
A photo taken by an instrument aboard the Mars Reconnaissance Orbiter shows dark, narrow, 100-meter-long streaks on the surface of Mars that scientists believe were caused by flowing streams of salty water. NASA

Modesto Junior College speaker seeking signs of life across the universe

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