Uploaded December 2020 | Updated September 2026, 2 hours ago

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he National Space Society's 23rd annual International Space Development Conference was held May 27-31, 2004 in Oklahoma City, OK.

What should come after the shuttle?

Marianne Dyson - Introduction - 0:11
Mark Hopkins - Moderator - 1:04
Greg Alison - 3:41
Dr. Robert Zubrin - 10:40
Rick Tumlinson - 19:04

Rebuttals - 26:59
Votes - 39:27
Q&A - 41:35

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