Star Gazers

"Measuring The Cosmos" 5 Min version

Special | 5m 15s

Star Gazers #1529 5 Min July 20 - 26, 2015 "How far is far?, in space??"

Aired: 07/19/15

Rating: NR

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Funding provided by The Batchelor Foundation and The William J. & Tina Rosenberg Foundation