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Does water on Mars mean there's hope for life?
Potentially life-giving water still flows across the ancient surface of Mars from time to time, NASA scientists said Monday in revealing a potential breakthrough in both the search for life beyond Earth and human hopes to one day travel there.
1:48 • Source: CNN
Mars Exploration 16 videos
nasa water on mars pkg_00000528.jpg
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Does water on Mars mean there's hope for life?
01:48
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• Source: CNN
Artistic impression of the Mars Express spacecraft probing the southern hemisphere of Mars.
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Why we care about water on Mars
01:32
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• Source: CNN
Mars rover approaching
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Curiosity lands successfully on Mars
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• Source: NASA
nasa mars mouse cheshire cat galaxies daily hit newday_00002508.jpg
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Mouse spotted on Mars?
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• Source: CNN
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See what it's like to fly over Mars
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Way Up There space series Can our minds handle it? Hi-seas dome hand out
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Can our minds handle Mars?
04:59
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Would you eat food grown on Mars?
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'Humans on Mars in 2027'
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Astronaut controls robot on Earth from space
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STAR CITY, RUSSIA - MARCH 5: In this handout from National Aeronautics and Space Administration or NASA, Astronaut Scott Kelly is seen inside a Soyuz simulator at the Gagarin Cosmonaut Training Center (GCTC) March 5, 2015 in Star City, Russia.
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Astronaut Scott Kelly: We're ready for Mars
01:55
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Crew finishes year-long Mars simulation on Hawaii
03:24
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Is this the ship that will take humans to Mars?
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Elon Musk
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Elon Musk on Mars travel: Ready to die?
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nasa proof of alien life in 20 years
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NASA: Proof of alien life closer
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crane mars blue sunset curiosit rover orig _00001322.jpg
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Mysterious images of blue sunset on Mars
01:53
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• Source: CNN/NASA
A newly released study from NASA shows Mars had an ancient ocean that might have been as large as Earth's Arctic Ocean.
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NASA: Mars had massive, mile-deep ocean
01:03
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• Source: NASA