(Phys.org) —A multi-year study of the Whirlpool galaxy (M51) has changed our understanding of giant molecular clouds, in which stars are born. The new study, which mapped 1,500 such clouds, shows that, instead, they are ...
Astronomy
Dec 12, 2013
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(Phys.org) —The first stars in the Universe are believed to have formed only a few hundred million years after the big bang, about 13.7 billion years ago. They heated and ionized the pristine intergalactic medium, and their ...
Astronomy
Nov 18, 2013
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The current theory of star formation has a problem: it cannot make big stars.
Astronomy
Sep 4, 2013
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Researchers from the University of Amsterdam have discovered that machines just one molecule in size move far quicker if you add a 'lubricant' to their surroundings. To their surprise, water proved to be the best lubricant ...
Materials Science
Sep 1, 2013
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In the search for clean, green sustainable energy sources to meet human needs for generations to come, perhaps no technology matches the ultimate potential of artificial photosynthesis. Bionic leaves that could produce energy-dense ...
Materials Science
Aug 29, 2013
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(Phys.org) —Few catalysts are energy efficient, highly active, stable, and operate in water, but a nickel-based catalyst designed at the Center for Molecular Electrocatalysis at Pacific Northwest National Laboratory quickly ...
Materials Science
Aug 14, 2013
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(Phys.org) —A CSIRO radio telescope has detected the raw material for making the first stars in galaxies that formed when the Universe was just three billion years old—less than a quarter of its current age. This opens ...
Astronomy
Jun 24, 2013
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Using data gathered by NASA's Lunar Reconnaissance Orbiter (LRO) mission, scientists believe they have solved a mystery from one of the solar system's coldest regions—a permanently shadowed crater on the moon. They have ...
Space Exploration
Jun 19, 2013
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(Phys.org) —A new study confirms directly what scientists previously knew only indirectly: The poisonous "rotten egg" gas hydrogen sulfide is generated by our body's growing cells. Hydrogen sulfide, or H2S, is normally ...
Analytical Chemistry
Jun 18, 2013
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(Phys.org) —Rice University researchers have for the first time detailed the molecular mechanism that makes a particular combination of cement and polymer glue so tough.
Materials Science
Jun 11, 2013
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