Cosmology -- Measurement. : Magnitude : the scale of the universe / Kimberly Arcand and Megan Watzke ; illustrations by Katie Peek, PhD ; designed by Alexander Isley Inc..
Cosmology -- Videorecordings. : Cosmic voyage [(DVD) videorecording] / a presentation of the Smithsonian's National Air and Space Museum and the Motorola Foundation ; written and directed by Bayley Silleck ; produced by Jeffrey Marvin, Bayley Silleck.