Reporting in Proceedings of the National Academy of Sciences, researchers write that complete strangers are capable of spotting individuals with a genetic predisposition to empathy and sociable behavior. Author Sarina Saturn discusses the study, and how sociability has evolved across cultures.
With the Macy's Thanksgiving Day Parade less than a week away, it's crunch time for the balloon technicians. Science Friday goes behind the scenes at Macy's design studio to find out about the final preparations for the parade.
Toilets, as most of us know them, haven't changed much since the 1800s--they use a lot of water, and require an infrastructure that many communities can't afford. Ira Flatow and guests look at the problem of access to sanitation, and how engineers are making toilets better.
For years, a theory has held that Earth's large moon played a critical role in stabilizing the planet's tilt, damping down differences between the seasons. Now, astronomer Jason Barnes says that life on our planet would endure even without a moon, a finding that might increase the number of potentially habitable planets in our galaxy.
Seven solar companies have filed a trade complaint with the federal government, accusing China of dumping artificially cheap solar panels on the US market. But solar installers welcome the low prices. Ira Flatow and guests discuss what's best for the domestic solar industry--and US jobs--in the long run.