Explore Mars
![](/images/icons/mars_interiors.jpg)
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 the
atmosphere gets thinner as you go up in altitude?
Earth and Space Science Concept of the Day
Do you know what this word or phrase means?
SeichexSeiche : A standing wave in an enclosed or partially enclosed body of water. Seiches and seiche-related phenomena have been observed on lakes, reservoirs, swimming pools, bays, and seas. The key requirement for formation of a seiche is that the body of water
Click on the word to find out!
Research Highlights
Tiny variations in the isotopic composition of silver in meteorites and Earth rocks are helping scientists put together a timetable of how our planet was assembled, beginning 4.568 billion years ago. Results...
Read more![](/olpa/early_water_small.jpg)