One of the mysteries of the English language finally explained.
Originally: the aster of a dividing cell, or the outer portion of this, exclusive of the centrosome. Later also: the centrosome of a cell.
Late 19th century; earliest use found in Journal of the Royal Microscopical Society. From astro- + sphere, after German Astrosphäre.
In this article we explore how to impress employers with a spot-on CV.