The nuns who mapped 481,215 stars for the Vatican observatory

[Michie]

Of the many momentous or menial tasks women religious perform, one of the better kept secrets has been the role of 4 Sisters of the Holy Child Mary who were part of a global effort to make a complete map and catalog of the starry skies.

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http://www.catholicnews.com/service...-instrumental-in-vatican-celestial-survey.cfm