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Watch as USA robots battle in the Sumo ring for world dominance and a $2,000 prize! Also check out the Quicktime archive of the 1999 and 2001 Competitions. 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. Exploratorium staff Ron Hipschman and Robyn Higdon sum up the last five days of spacewalks, and show a couple of good-bye conferences with the shuttle astronauts. The Near Infrared Camera and Multi-Object Spectrometer (NICMOS) will be brought back to life with the installation of the new experimental NICMOS cryo-cooler. The cryo-cooler updates the technology from that of an icebox to a modern refrigerator. We also talk to Keith Noll, head if the Hubble Heritage Project, which is responsible for bringing us those stunning pictures from deep space. The Advanced Camera for Surveys (ACS) was successfully installed. In preparation for the installation of the NICMOS Cooling System tomorrow, the astronauts also installed the Electronics Support Module. We also talk with Massimo Stiavelli, a scientist at the Space Telescope Science Institute about his involvement with the ACS and the future Wide Field Planetary Camera 3 (WFPC3) scheduled to be installed during the next servicing mission in 2004. Learn about the successful replacement of the Power Control Unit (PCU) and listen as we talk with Mark Clampin, part of the team that developed the Advanced Camera for Surveys scheduled for installation tonight. We learn about Hubble's new solar arrays, and Dr. Bruce Margon talks about the future of Hubble and about the Next Generation Telescope, which will eventually replace Hubble. 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. 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. In a broad-ranging look at the impact of Eames design on contemporary culture, Steve Cabella hosts a discussion with Joseph Rosa, Curator of Architecture and Design at the San Francisco Museum of Modern Art.