StarDate: September/October 2013

Radiant Darkness
cover of the September-October 2013 issue

In our September/October issue, find out how astronomers study the behavior of galaxies in giant clusters hoping to crack the mystery of dark matter. We'll also bring you fall skywatching tips, the latest astronomy news, and Merlin's cosmic wisdom.

Downloadable publications require Adobe Acrobat 7 (or later) or other comparable PDF software for viewing and printing.


©2015 The University of Texas McDonald Observatory