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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 picture shows what an artist thinks Phoenix will look like on Mars. The flat, round, dark objects on each side of Phoenix are the spacecraft's solar panels. The solar panels make electricity for Phoenix. The robot arm is shown reaching out to the left to scoop up soil samples. A thin green laser beam shoots up into the sky. The LIDAR instrument uses the laser to measure dust in the Martian atmosphere.
Click on image for full size
Image courtesy of NASA/JPL/UA/Lockheed Martin.

Phoenix Mars Lander - Instruments and Mission Objectives

NASA has a new spaceship on Mars. The robot is called the Phoenix Mars Lander. Phoenix landed near the North Pole on Mars. This page tells about the mission of Phoenix. It also describes the instruments on the robot. Click here to read some basic info about Phoenix on another page.

Phoenix is not a rover that moves around. Phoenix will stay in one place now that it has landed. It has a robotic arm that it is using to scoop up soil. It is looking for ice in the Martian soil and checking for other chemicals. Phoenix is using its instruments to "taste" and "smell" the soil its arm digs up.

There might be life on Mars. If there isn't, maybe there was in life there in the past. Life on Earth needs water. Life on Mars would probably need water too. Phoenix is looking for ice... frozen water! If it finds ice, that might tells us whether there could be life. If the robot does find ice, it will use its instruments to help us learn more about the ice and water on Mars.

Phoenix has a robotic arm. The arm is digging into the ground and scooping up soil and maybe ice. It puts the stuff it scoops up into some mini-laboratories inside of Phoenix. The mini-labs test the samples for minerals, carbon dioxide, ice, and other materials. The labs also check to see if the soil is too salty or has too much acid in it for life. Phoenix also has a weather station on it. It checks the temperature and air pressure every day. The weather station also has a laser sensor to measure dust in the Martian atmosphere. Finally, Phoenix has three cameras. Two of the cameras are on the main body of the robot. The third camera is on the robot arm.

Last modified February 4, 2010 by Randy Russell.

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