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Comet Lovejoy does the polar plunge

Lots of towns hold a polar plunge fundraising event in the winter. Duluth, Minnesota's version, where participants jump in Lake Superior every February, might just be the coldest. Comet Lovejoy's a season ...

dateMay 11, 2015 in Space Exploration
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In the realm of eternal ice

On 6 November 2010, the light of the star known as NOMAD1 0856-0015072 in the Cetus constellation dimmed. What had happened? A dwarf planet at the edge of the solar system had moved in front of the distant ...

dateApr 23, 2015 in Space Exploration
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On Pi Day, how scientists use this number

If you like numbers, you will love March 14, 2015. When written as a numerical date, it's 3/14/15, corresponding to the first six digits of pi (3.1415)—a once-in-a-century coincidence! Pi Day, which would ...

dateMar 13, 2015 in Mathematics
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