At the Edge of SpaceDVD - 2014
Between the blue sky above us and the infinite blackness of space lies a frontier full of enigmas that scientists have only just begun to investigate. It takes viewers on an exploration to probe the earth-space boundary zone, which is home to some of nature's most puzzling and alluring phenomena: the shimmering aurora, streaking meteors, and fleeting flashes that shoot upwards from thunderclouds, known as sprites.
Publisher: [Alexandria, VA] : PBS, 
Characteristics: 1 videodisc (60 min.) : sound, color ; 4 3/4 in.
Alternative Title: Nova (Television program)