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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 ...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 is a previous Atlantis launch. We may not see another one of these until May.
Click on image for full size
Courtesy of NASA

Altantis Receives "Go" on Launch
News story originally written on September 25, 1997

Despite Mir's troubled past and very recent computer failures, NASA intends to send astronaut David Wolf to Mir aboard the shuttle Atlantis. Dr. Wolf will replace Dr. Michael Foale who has been onboard the station since May. Atlantis is scheduled for launch on September 25 at 10:34 p.m. EDT from the Kennedy Space Center in Florida.

NASA has been under intense pressure from Congress, some space observers, and even some people within NASA not to send Wolf to the problem-plagued station. On the CBS Evening News, ex-astronaut Stafford said, "It's a `go' because we reviewed that the systems on board the Mir present no more risks than they have for the previous flights that have gone up there." Stafford led a team that was in charge of assesssing the safety of the Shuttle-Mir mission.

The joint shuttle and Mir 24 crew will transfer hardware, science equipment, and water between the two spacecraft. Much of the science equipment is for Wolf's experiments that will help NASA finalize plans for the International Space Station. NASA Administrator Daniel S. Goldin said, "We move forward not only because it is safe, but for the important scientific and human experience we can gain only from Mir. As we prepare for the June 1998 launch of the first element of the International Space Station, nothing can beat the hands-on, real-time training aboard Mir."

David Wolf, excited about his stay on Mir, will call Mir his home for the next four months. Stay tuned for more news on the launch and mission status of STS-86.

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