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A History of Vaccination
4m 48s
/ TV-PG
Vaccination began as a traditional therapy over a thousand years ago.
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Video description: On February 1, 2003, the space shuttle Columbia disintegrated just 16 minutes before it was due to land. All seven astronauts aboard perished, and the implications for the future of the space shuttle program were enormous. Through interviews with astronauts and their families, and with members of the Columbia Accident Investigation Board, take a look at the Columbia tragedy — and at NASA itself.
Science shows it’s a small world after all—and nature’s networks follow a similar pattern.
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