Tag Archives | quantifying number


No shortage of neo-Earths

One of astronomy’s current goals is to determine the number of sun-like stars that have an earth-like planet. Now, a new guesstimate from the University of California – Berkeley published in Science puts that number at a very high 1-in-4. To arrive at the 1-in-4 figure, UC Berkeley astronomers Andrew Howard and Geoffrey Marcy chose […]

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