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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
Just the Facts
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Dig Deeper
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Create Your Report
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Even More Stuff...
Even More Stuff...
  Explore Mars in 3D Videos Activities

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We made it! Curiosity reaches Mount Sharp
We made it! Curiosity reaches Mount Sharp
Curiosity Rover Report: A Softer Trek to Mount Sharp
Curiosity Rover Report: A Softer Trek to Mount...
10 Years on Mars: Operating a Rover
10 Years on Mars: Operating a Rover
10 Years on Mars: How Spirit & Opportunity Affected Our Lives
10 Years on Mars: How Spirit & Opportunity...
Opportunity: 10 Years on Mars - Science
Opportunity: 10 Years on Mars - Science
From Earth to Deep Space: NASA 2013 Highlights
From Earth to Deep Space: NASA 2013 Highlights
Liftoff of MAVEN
Liftoff of MAVEN
LeVar Burton Shares MAVEN's Story in a New NASA PSA
LeVar Burton Shares MAVEN's Story in a New NASA...
NASA's MAVEN Prepared for Trip to Mars
NASA's MAVEN Prepared for Trip to Mars
Mars Evolution
Mars Evolution
What Happened to Mars? A Planetary Mystery
What Happened to Mars? A Planetary Mystery
MAVEN Profiles: Carlos Gomez-Rosa
MAVEN Profiles: Carlos Gomez-Rosa
Leave the Driving to Autonav
Leave the Driving to Autonav
Eclipse at Mars Casts Shadow Around Mars Rover Curiosity
Eclipse at Mars Casts Shadow Around Mars Rover...
Mars' Moon Phobos Eclipses the Sun, as Seen by Curiosity
Mars' Moon Phobos Eclipses the Sun, as Seen by...
Keeping the Odometer Turning
Keeping the Odometer Turning
Previous
Previous
    1     2     3     4     5     6     7    
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Previous
Previous
    1     2     3     4     5     6     7    
Next
We made it! Curiosity reaches Mount Sharp
We made it! Curiosity reaches Mount Sharp
Curiosity Rover Report: A Softer Trek to Mount Sharp
Curiosity Rover Report: A Softer Trek to Mount...
10 Years on Mars: Operating a Rover
10 Years on Mars: Operating a Rover
10 Years on Mars: How Spirit & Opportunity Affected Our Lives
10 Years on Mars: How Spirit & Opportunity...
Opportunity: 10 Years on Mars - Science
Opportunity: 10 Years on Mars - Science
From Earth to Deep Space: NASA 2013 Highlights
From Earth to Deep Space: NASA 2013 Highlights
Liftoff of MAVEN
Liftoff of MAVEN
LeVar Burton Shares MAVEN's Story in a New NASA PSA
LeVar Burton Shares MAVEN's Story in a New NASA...
NASA's MAVEN Prepared for Trip to Mars
NASA's MAVEN Prepared for Trip to Mars
Mars Evolution
Mars Evolution
What Happened to Mars? A Planetary Mystery
What Happened to Mars? A Planetary Mystery
MAVEN Profiles: Carlos Gomez-Rosa
MAVEN Profiles: Carlos Gomez-Rosa
Leave the Driving to Autonav
Leave the Driving to Autonav
Eclipse at Mars Casts Shadow Around Mars Rover Curiosity
Eclipse at Mars Casts Shadow Around Mars Rover...
Mars' Moon Phobos Eclipses the Sun, as Seen by Curiosity
Mars' Moon Phobos Eclipses the Sun, as Seen by...
Keeping the Odometer Turning
Keeping the Odometer Turning
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