Thursday marks Pi Day, otherwise known as 3.14, which is the ratio of a circle's circumference to its diameter. While the average person can easily remember the rounded 3.14 ratio, the exact ratio has ...
TWO HATS: Alan Stern, NASA's newly named associate administrator for science, will continue as principal investigator (PI) on the New Horizons Pluto flyby mission that he shepherd to the launch pad in ...
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