Probing Question: Why does the Earth rotate?

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We spend our lives on a spinning globe -- it takes only 24 hours to notice that, as night follows day and the cycle repeats. But what causes Earth to rotate on its axis?

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All News summaries from Space & Earth science news
All News summaries for August 06, 2007

'Clock ticking' on global warming: UN climate chief

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Time is running out in the fight against global warming, the UN's top climate change official warned as a new round of UN talks got started here Thursday.

New clues to air circulation in the atmosphere

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Air circulates above the Earth in four distinct cells, with two either side of the equator, says new research. The new observational study describes how air rises and falls in the atmosphere above the Earth's surface, creating ...

Sperm Whales in Gulf Seemingly Unaffected by Distant Seismic Sounds

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A six-year study on sperm whales in the Gulf of Mexico – designed to learn more about their abundance, migration patterns and behavior – suggests that long-range seismic sounds associated with oil and gas exploration and ...

Phoenix Mars Lander Explores Site by Trenching

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NASA's Phoenix Mars Lander scientists and engineers are continuing to dig into the area around the lander with the spacecraft's robotic arm, looking for new materials to analyze and examining the soil and ice subsurface structure.

Tahitian vanilla originated in Maya forests

Aug 21, 2008 | User rating: not rated yet

The origin of the Tahitian vanilla orchid, whose cured fruit is the source of the rare and highly esteemed gourmet French Polynesian spice, has long eluded botanists. Known by the scientific name Vanilla ...

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