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1:08:10
Watch as Exploratorium staff and local teachers compete for the title of Iron Sscience Teacher. Each contestant has ten minutes to make a science lesson out of a secret ingredient.

00:35:48
In an exclusive taped interview, Hubble payload commander and astronaut John Grunsfeld discusses how astronauts who'll be servicing a telescope in space train in a giant pool at the Johnson Space Center. We'll also show an interview with space engineer Amy Ross, filmed in the space suit laboratory at Johnson.

00:29:40
Fresh from the launch viewing area at Kennedy Space Center, Ron Hipschman shows images and recounts what it���s like to watch at shuttle launch from three miles away. We also preview the mission and the tasks the astronauts will be doing during their five planned space walks.