Researcher simluate characteristics of planetary cores

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Earth
University of Minnesota researchers Renata Wentzcovitch and Koichiro Umemoto and Philip B. Allen of Stony Brook University have modeled the properties of rocks at the temperatures and pressures likely to exist at the cores of Jupiter, Saturn and two exoplanets far from the solar system. They show that rocks in these environments are different from those on Earth and have metallic-like electric and thermal conductivity. These properties can produce different terrestrial-type planets, with longer-lasting magnetic fields, enhanced heat flow to the planetary surfaces and, consequently, more intense "planetquake" and volcanic activity.


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All News summaries for February 22, 2006

Wolverine advocates give notice of intent to sue

3 hours ago | User rating: not rated yet
(AP) -- Nine environmental groups said Tuesday they plan to sue the federal government if wolverines aren't granted protection under the Endangered Species Act within 60 days.

Polar bear harassment by oil companies challenged

4 hours ago | User rating: not rated yet
(AP) -- Two conservation groups filed a lawsuit on Tuesday challenging the Bush administration's decision to let oil companies unintentionally harass or harm polar bears and walruses off the northwestern ...

Developing economies don't back G-8 climate goal

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(AP) -- A joint gathering of major developed and developing nations on Wednesday agreed that climate change was "one of the great global challenges of our time" and pledged to back a United Nations effort ...

Satellite view of cloud tops might warn of storms brewing

Jul 08, 2008 | User rating: not rated yet
For three years a new way to use data collected by NOAA weather satellites has been giving North Alabama short-term warnings of "pop-up" thunderstorms.

Station Crew Prepares for Thursday Spacewalk

Jul 08, 2008 | User rating: not rated yet
The Expedition 17 crew of the International Space Station worked Tuesday towards completing preparations for a pair of spacewalks. They donned their spacesuits for a dry run and inspected hatch seals.
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