Artistic impression of the Mars Express spacecraft probing the southern hemisphere of Mars.
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Why we care about water on Mars
After years of research, scientists have confirmed that liquid water exists on Mars. This could allow humans to further explore the red planet.
01:32 - Source: CNN
Mars Exploration 15 videos
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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Mouse spotted on Mars?
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3d mars nasa frojdman orig_00000000.jpg
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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?
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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
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Crew finishes year-long Mars simulation on Hawaii
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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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Mysterious images of blue sunset on Mars
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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