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The Spring 2011 issue of The Earth Scientist is focused on modernizing seismology education. Thanks to IRIS, you can download this issue for free as a pdf. Print copies are available in our online store.
Valles Marineris, the grand valley of Mars named after the Mariner program which first took close-up images.
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Image from: USGS

Valles Marineris

Next to the Tharsis Ridge is Valles Marineris, a very long canyon of Mars.

As can be seen in the image, many huge ancient rivers extend toward the top of the image. The three Tharsis volcanoes (dark red spots) are visible on the leftmost edge of the image. To the south are the highlands; very ancient ground, covered by many craters.

Better images returned by the Mars Global Surveyor spacecraft allow a closer look of this unusual canyon. These images show slopes descending steeply to the north and south in broad, debris-filled gullies. These gullies look a lot like canyons on Earth.

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Our online store includes issues of NESTA's quarterly journal, The Earth Scientist, full of classroom activities on different topics in Earth and space science, ranging from seismology, rocks and minerals, oceanography, and Earth system science to astronomy!

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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