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| NGC 300: A nearby galactic exemplar | Thursday, September 09, 2010 | | The galaxy's surprisingly normal structure makes it an ideal specimen for astronomers studying the structure and content of spiral galaxies such as our own Milky Way. |
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| Galactic tendrils shed light on evolution of spiral galaxies | Wednesday, September 08, 2010 | | For the first time, a new survey has detected the telltale structures of spiral galaxies swallowing smaller dwarf companions in star cities more distant than our immediate galactic neighborhood, opening up the possibility of testing our current views of galaxy evolution in a new way. |
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| Two asteroids pass by Earth Wednesday | Wednesday, September 08, 2010 | | An asteroid designated 2010 RF12 is expected to pass within approximately 49,000 miles of Earth at 5:12 p.m. EDT. Another asteroid, 2010 RX30, passed within approximately 154,000 miles overnight. Neither is a threat to Earth. |
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| Fundamental constant might change across space | Tuesday, September 07, 2010 | | Research results currently under peer review imply that the fine-structure constant, which characterizes the strength of the electromagnetic force, might have different values depending on which direction scientists are looking in the sky. |
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| Missing piece inspires new look at Mars puzzle | Tuesday, September 07, 2010 | | New experiments suggest that chlorine compounds from NASA's Viking landers then thought to be contaminants from cleaning fluids might indeed have contained carbon-based chemicals, the building blocks of life. |
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| Recipe for water: just add starlight | Thursday, September 02, 2010 | | Observations with the Herschel infrared space observatory have revealed that ultraviolet light is a key ingredient in the formation of an unexpected cloud of water vapor around an old red giant star. |
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