Current Events

  • Kansas Legislator Proposes Bill to Outlaw Sustainability Education
    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of ...Read more

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    Kansas Legislator Proposes Bill to Outlaw Sustainability Education

    A bill has been introduced in the Kansas legislature this week that would prohibit the promotion of sustainability. Here is a link to the one-page bill: http://www.kslegislature.org/li/b2013_14/measures/documents/hb2366_00_0000.pdf. See report on Bloomberg News.
  • Earth's Center Is 1,000 Degrees Hotter Than Previously Thought, Synchrotron X-Ray Experiment Shows
    Scientists have determined the temperature near the Earth’s center to be 6000 degrees Celsius, 1000 ...Read more

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    Earth's Center Is 1,000 Degrees Hotter Than Previously Thought, Synchrotron X-Ray Experiment Shows

    Scientists have determined the temperature near the Earth’s center to be 6000 degrees Celsius, 1000 degrees hotter than in a previous experiment run 20 years ago. These measurements confirm geophysical models that the temperature difference between the solid core and the mantle above, must be at least 1500 degrees to explain why the Earth has a magnetic field. For more information about this study, see the press release from the European Synchrotron Radiation Facility.
  • Ocean Volcanic Rocks Contain Samples of Recycled Crust
    Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials fr...Read more

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    Ocean Volcanic Rocks Contain Samples of Recycled Crust

    Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth’s crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including Carnegie’s Erik Hauri demonstrates that oceanic volcanic rocks contain samples of recycled crust dating back to the Archean era 2.5 billion years ago. Their work is published in Nature. Oceanic crust sinks into the Earth’s mantle at so-called subduction zones, where two plates come together. Much of what happens to the crust during this journey is unknown. Model-dependent studies for how long subducted material can exist in the mantle are uncertain and evidence of very old crust returning to Earth’s surface via upwellings of magma has not been found until now. For more information about these results, see the press release from the Carnegie Institution.

Photograph by Carlye Calvin

Sandra Henderson

Hi there!

I am a science educator with the Windows to the Universe project. Mostly, I work on the classroom activities and help lead our professional development efforts for teachers. It is very rewarding and enjoyable to help take the Windows to the Universe project 'on the road' to share with science teachers from around the country at meetings and conferences.

Portland, Oregon is my hometown. Growing up in the Pacific Northwest gave me the opportunity to explore all sorts of different environments like mountains, valleys, coastal areas, high deserts, and rivers. When it was time to go to college, I knew I wanted to do something that would let me learn more about the world's different ecosystems and the plants, animals, and people living in them. I attended Oregon State University and earned a B.S. and M.S. from the Department of Geography.

After graduating, I went to work at the U.S. Environmental Research Laboratory where I joined a team working on the potential effects of climate change on terrestrial ecosystems. Part of our work was to figure out what might happen to the plants and animals of different ecosystems if the climate continued to change rapidly. I had an opportunity to help teachers develop classroom materials on climate. As a result of my time working with teachers, I returned to Oregon State University and earned a Ph.D. in Science Education. I have continued to work as a science educator at the University Corporation for Atmospheric Research in Boulder, Colorado where I work on a number of different science education projects including Windows to the Universe.

When I am not at work, there are lots of things that keep me busy. I am married to a really nice guy and we have two grown children. I love being around animals and am very lucky to have two dogs, three cats, and five horses. I also like to hike, ski, garden, quilt, cook, and read.

Last modified May 15, 2008 by Sandra Henderson.

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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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Shop Windows to the Universe

With Explore the Planets, investigate the planets, their moons, and understand the processes that shape them. By G. Jeffrey Taylor, Ph.D. See our DVD collection.

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF