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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 a small rock.
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Image from: JPL/NASA

Ventifacts in rocks of Mars

This image shows pits and holes (ventifacts) in a small rock found by the Mars Pathfinder Rover. These ventifacts are artifacts of weathering on Mars and were created by wind erosion. The Souffle rock also reveals a very pitted surface.

Analysis of this particular rock shows it to be a conglomerate. Conglomerates are sedimentary rocks, formed under conditions of turbulent water. Other conglomerates found at the landing site include the Shark and Half Dome.

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Traveling Nitrogen Classroom Activity Kit

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

Results from Mars Pathfinder

These are the findings of Mars Pathfinder. High Silica Rocks - a result from chemical analysis of the Martian rocks. suggestive of differentiated (evolved) rocks and minerals. helps establish that, like...more

Rock weathering on Mars

The rocks explored by the Mars Pathfinder's Rover are classified into two groups according to how they weather. Differing weathering properties may indicate differing conditions of deposition because impact...more

Mars Odyssey

The Mars Odyssey was launched April 7, 2001, from Cape Canaveral Air Force Station in Florida. After a six-month, 285 million-mile journey, the Odyssey arrived at Mars on October 24, 2001 (02:30 Universal...more

Mars 2005

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

Aerobraking

On September 12, 1997, the Mars Global Surveyor successfully entered a highly elliptical orbit around Mars. To get into the near-circular, near-polar, low-altitude orbit necessary to map the surface of...more

Mars Global Surveyor Measures Olympus Mons

Mars Global Surveyor carries an instrument which measures the altitudes of things. The 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 altitudes of things. The instrument is called an altimeter, or "altitude-meter". The graph to the left shows Mars Global Surveyor's measurement...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