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The Red Planet
Mars is a cold desert world. It is half the diameter of Earth and has the same amount of dry land. Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons and weather, but its atmosphere is too thin for liquid water to exist for long on the surface. There are signs of ancient floods on Mars, but evidence for water now exists mainly in icy soil and thin clouds.

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Just the Facts
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  Explore Mars in 3D Videos Activities

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Zooming in on the Scene of Curiosity's Landing
Zooming in on the Scene of Curiosity's Landing
NASA Lands Car-sized Rover on Martian Surface
NASA Lands Car-sized Rover on Martian Surface
Curiosity Pre-Launch Mast Test
Curiosity Pre-Launch Mast Test
Curiosity's Descent
Curiosity's Descent
Explore Mars With Curiosity
Explore Mars With Curiosity
Curiosity Has Landed
Curiosity Has Landed
Curiosity Descent
Curiosity Descent "Audio" Captured by ESA Mars...
Mars Reconnaissance Orbiter Flying Over Mars
Mars Reconnaissance Orbiter Flying Over Mars
Curiosity Speaks
Curiosity Speaks
Communicating with Curiosity
Communicating with Curiosity
Great Convergence of Spacecraft around Mars
Great Convergence of Spacecraft around Mars
Mars in a Minute: Phoning Home: Communicating from Mars
Mars in a Minute: Phoning Home: Communicating...
'Top Gun' Tests Radar for Mars
'Top Gun' Tests Radar for Mars
Popping the Lid off Curiosity's Hazard Cameras
Popping the Lid off Curiosity's Hazard Cameras
Curiosity's Hazard Cameras Ready for Action
Curiosity's Hazard Cameras Ready for Action
Go Curiosity -- A Message from John Grunsfeld
Go Curiosity -- A Message from John Grunsfeld
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Previous
    1     2     3     4     5     6     7     8    
Next
Zooming in on the Scene of Curiosity's Landing
Zooming in on the Scene of Curiosity's Landing
NASA Lands Car-sized Rover on Martian Surface
NASA Lands Car-sized Rover on Martian Surface
Curiosity Pre-Launch Mast Test
Curiosity Pre-Launch Mast Test
Curiosity's Descent
Curiosity's Descent
Explore Mars With Curiosity
Explore Mars With Curiosity
Curiosity Has Landed
Curiosity Has Landed
Curiosity Descent
Curiosity Descent "Audio" Captured by ESA Mars...
Mars Reconnaissance Orbiter Flying Over Mars
Mars Reconnaissance Orbiter Flying Over Mars
Curiosity Speaks
Curiosity Speaks
Communicating with Curiosity
Communicating with Curiosity
Great Convergence of Spacecraft around Mars
Great Convergence of Spacecraft around Mars
Mars in a Minute: Phoning Home: Communicating from Mars
Mars in a Minute: Phoning Home: Communicating...
'Top Gun' Tests Radar for Mars
'Top Gun' Tests Radar for Mars
Popping the Lid off Curiosity's Hazard Cameras
Popping the Lid off Curiosity's Hazard Cameras
Curiosity's Hazard Cameras Ready for Action
Curiosity's Hazard Cameras Ready for Action
Go Curiosity -- A Message from John Grunsfeld
Go Curiosity -- A Message from John Grunsfeld
Previous
    1     2     3     4     5     6     7     8    
Next