Archive: 27/09/2007

SOHO Mission Discovers Rare Comet

The Solar and Heliospheric Observatory (SOHO) has discovered a rare periodic comet. SOHO has already discovered more than 1,350 comets during its mission, but this is the first time one of its discoveries officially has been ...

dateSep 27, 2007 in Space Exploration
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Discovery challenges timeline of oxygen on Earth

Two multinational teams of scientists, including four researchers from Arizona State University, are reporting that traces of oxygen appeared in Earth’s atmosphere 50 to 100 million years before the “Great Oxidation Event.” ...

dateSep 27, 2007 in Earth Sciences
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Giardia genome unlocked

Giardia lamblia, one of the most common human parasites in the United States, causes more than 20,000 intestinal infections a year, often through contact with contaminated drinking or swimming water. In the September 28 issue ...

dateSep 27, 2007 in
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Hair Untangles Woolly Mammoth Puzzle

Stephan C. Schuster and Webb Miller of Penn State University, working with Thomas Gilbert from Copenhagen and a large international consortium, discovered that hair shafts provide an ideal source of ancient DNA -- a better ...

dateSep 27, 2007 in
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Cockroaches are morons in the morning, geniuses in the evening

In its ability to learn, the cockroach is a moron in the morning and a genius in the evening. Dramatic daily variations in the cockroach’s learning ability were discovered by a new study performed by Vanderbilt University ...

dateSep 27, 2007 in
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