Preserving the night skies of the Texas Hill Country    Bill Wren recalls how fascinated he was by the night sky when he was a child. “I remember many evenings lying in the grass looking up at the stars and wondering about the world beyond my immediate surroundings.” A veteran astronomer at the McDonald Observatory, Wren is concerned that children of future generations may not be able to experience the wonder of a brilliant starry sky because of light pollut ...