Explore Mars
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The uniquely red global surface of Mars is marked by many interesting features - some like ...
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![](/images/icons/mars_atmosphere..jpg)
The atmosphere of Mars is much thinner than that of Earth, with a surface pressure averaging ...
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![](/images/icons/mars_moons.jpg)
Mars has two small moons, Phobos and Deimos. The red planet does not have any rings. ...
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![](/images/icons/mars_poles.jpg)
The North and South Poles on Mars are similar to the polar regions on Earth in many ways. They ...
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![](/images/icons/mars_facts.jpg)
All of the relevant information about Mars collected on one page, including details about size, orbit ...
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![](/images/icons/mars_myth.jpg)
Mars was the son of Jupiter and Juno, and was the Roman god of war. Mars was the lover of Venus ...
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![](/images/icons/mars_missions.jpg)
In the past few decades, the Russian and American space agencies have sent many spacecraft ...
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![](/images/icons/mars_images.jpg)
Access wonderful captioned photos and illustrations that will inspire and excite you. ...
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![](/images/icons/mars_links.jpg)
These are links to other great web sites about Mars. But beware: you don't want to get caught ...
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Did you know?
What do
White Dwarfs and
Black Holes have in common? Find out in our
Strange Stuff in Space section!
Did you know that we look back in time when we look into the cosmos?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
Shadow zonexShadow zone : The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being b
Click on the word to find out!
Research Highlights
The Gulf of Mexico: what role will the Mississippi River play in oil washing ashore and into delta wetlands? One of the spill's greatest environmental threats is to Louisiana's wetlands, scientists believe....
Read more![](/olpa/images/miss_river_small.jpg)