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.
This total solar eclipse in 1980 was photographed from Palem, India.
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High Altitude Observatory and Rhodes College

High Altitude Observatory

Scientists at the High Altitude Observatory (HAO) try to learn about the changes we see in the Sun over time. They also study how it affects the atmosphere of the Earth. There are four main areas of study at HAO.

Some people try to learn about the inside of the Sun, and how it changes over time. They collect facts about the Sun, and try to learn about the basic things that affect it.

Others focus on the magnetic parts of the Sun and the events we see near the surface. This connects the study of the inside with the changes in the hot gas above the surface.

Another group builds tools to look at the atmosphere of the Sun, and try to learn about the changes we see over hours and years. Light and gas move out from the Sun, sometimes in sudden bursts.

As this light and gas reaches the Earth, others study the impact of the Sun's output on the atmosphere of our planet. This helps us protect astronauts, and teaches us how the Sun affects our climate.

Last modified February 9, 2005 by Travis Metcalfe.

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