Shop Windows to the Universe

Science, Evolution, and Creationism, by the National Academies, focuses on teaching evolution in today's classrooms. Check out the other publications in our online store.
This image shows the landing site for the Mars Pathfinder mission.
Click on image for full size
Image from: NASA/JPL

Ares Vallis

Mars Pathfinder touched down in what appeared to be the remains of a catastrophic flood. Thus, scientists had the opportunity to study what is thought to be a surface created by flowing water.

A map of the region, shown here, shows the Ares and Tiu valleys. Ares is the Greek name of the god of War, also called Mars by the Romans. Read about the god Ares below. Ares Vallis means "Ares Valley". These valleys are to be found on the north-eastern edge of Xanthe Terra (look at the large map of Mars to see Xanthe Terra).

The picture shows tear-dropped shaped tails around some of the craters in the area. These tails indicate that there might have been a lot of flowing water in the area in the past. The tails are part of the reasons why scientists think the region is an valley created by a catastrophic flood.

On the web page linked in at the bottom of this page one may create your own map of the region and see the channels relative to where Pathfinder landed. Connecting to this web-site is recommended. Once linked, a map is shown which shows the Mars Pathfinder landing site. Click on the landing site location and create your own map. Then use the (-) button to zoom out and view the landing site from a greater distance.

Shop Windows to the Universe Science Store!

Our online store includes books on science education, classroom activities in The Earth Scientist, mineral and fossil specimens, and educational games!

Windows to the Universe Community



You might also be interested in:

Traveling Nitrogen Classroom Activity Kit

Check out our online store - minerals, fossils, books, activities, jewelry, and household items!...more

Martian Outflow Channels

On Mars there are the remains of many tear-drop shaped lakes such as the one shown in this image. Most of these are found near the Martian volcanoes. They are really channels where water once gushed forth....more

Mars Odyssey

The Mars Odyssey was launched April 7, 2001. After a six-month journey, the Odyssey arrived at Mars on October 24, 2001. The instruments onboard the Mars Odyssey will study the minerals on the surface...more

Mars 2005

The Mars 2005 mission is still in the planning stages. It is set to launch in the year 2005. ...more


Aerobraking slowed the Mars Global Surveyor down when it reached Mars. Aerobraking also helped MGS to get into the right orbit for mapping the surface of Mars. Aerobraking means that the MGS flew through...more

Mars Global Surveyor Measures Olympus Mons

Mars Global Surveyor carries an instrument which measures the heights of things. This instrument is called an altimeter, or "altitude-meter". The graph to the left shows the results returned from Mars...more

Mars Global Surveyor Measures Martian Global Hemispheres

Mars Global Surveyor carries an instrument which measures the heights of things. The picture to the left shows Mars Global Surveyor's measurement of the size of the giant cliff which separates the southern...more

Mars Global Surveyor Measures Volcano Altitudes

Mars Global Surveyor carries an instrument which measures the heights of things. The picture to the left shows the results returned from Mars Global Surveyor's measurement of the size of some of the Martian...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA