Archive: 11/10/2007

Ice age not a global phenomenon: study

If the Earth is heading for a new ice age, Australia may not be as affected as countries in the Northern Hemisphere, according to new research from The Australian National University published today in Science.

dateOct 11, 2007 in Earth Sciences
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Giant Atmospheric Waves Over Iowa

Pop quiz: define undular bore. If your answer included words such as dull or tiresome, i.e., boring, think again. Or better yet, click on the image below to see an undular bore in action.

dateOct 11, 2007 in Earth Sciences
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Testing Einstein: Is Dark Energy Constant?

Nearly a decade ago, astronomers discovered the surprising existence of dark energy-a mysterious force that pushes galaxies apart and accelerates the expansion of the universe. Also known as the energy density of the vacuum, ...

dateOct 11, 2007 in General Physics
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Methane drizzle on Saturn's moon Titan

Noted for its bizarre hydrocarbon lakes and frozen methane clouds, Saturn's largest moon, Titan, also appears to have widespread drizzles of methane, according to a team of astronomers at the University of California, Berkeley.

dateOct 11, 2007 in Space Exploration
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Scientists Sequence Genome of Soil-Dwelling Green Alga

The genome analysis of a tiny green alga has uncovered hundreds of genes that are uniquely associated with carbon dioxide capture and generation of biomass. Among the 15,000-plus genes revealed in the study are those that ...

dateOct 11, 2007 in
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Stem cell nuclei are soft 'hard drives,' study finds

Biophysicists at the University of Pennsylvania have discovered that the nuclei of human stem cells are particularly soft and flexible, rather than hard, making it easier for stem cells to migrate through the body and to ...

dateOct 11, 2007 in
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