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International Space Station following most recent upgrade. Credit: STS-119 Shuttle Crew, NASA.

Voyager Spacecraft Anniversary: We wish a happy anniversary to the Voyager spacecraft, still returning data after 30 years of flight. (first broadcast Friday, August 24, 2007)

Chemistry News: This hour the president of the American Chemical Society joins host Ira Flatow for a rundown of the latest chemistry news. (first broadcast Friday, August 24, 2007)

Camp Out!: Science Friday is going on a camping trip. (first broadcast Friday, August 24, 2007)

Space Shuttle Update: NASA engineers decided not to repair damaged tiles on the space shuttle Endeavour before it returns to Earth. (first broadcast Friday, August 17, 2007)

Wiretapping: A look at the technology of wiretapping. (first broadcast Friday, August 17, 2007)

Science of Stocks: After a summer of big swings in the stock market, Ira talks with an investment strategist about the science of stocks. (first broadcast Friday, August 17, 2007)

What Inventors Need to Know: In celebration of National Inventors' Month, join Ira Flatow this hour of Science Friday as the talk turns to inventing. (first broadcast Friday, August 17, 2007)

New Fossil Find: New fossil finds shake up the human family tree. (first broadcast Friday, August 10, 2007)

Wave Power: Researchers explore ways to harvest energy from the motion of the ocean. (first broadcast Friday, August 10, 2007)

Ancient DNA: Why DNA in ancient ice might tell us how life on earth DIDN'T start. (first broadcast Friday, August 10, 2007)

Farm Bill and What to Eat: What's for dinner -- and why? (first broadcast Friday, August 10, 2007)

New FCC Rules Give Consumers More Choice: Will new rules for 'open access' change the wireless landscape? (first broadcast Friday, August 3, 2007)

Hackers Test California Voting Machines: How secure are electronic voting machines? (first broadcast Friday, August 3, 2007)

The Science Behind Strong Bridges: Ira and guests talk about bridge engineering and our nation's infrastructure. (first broadcast Friday, August 3, 2007)