Science Friday

Science Friday with host Ira Flatow discusses the latest in science, technology, health, and the environment. It's brain fun, for curious people.

Recent Episodes

Marijuana Policy and Opioids, Placenta, Exoplanets, DNA Replication

A new way to look at fetal health, using the placenta. Plus, the Kepler mission found thousands of new planet candidates, including 10 possible rocky worlds within their stars habitable zone. And a new video captures DNA in the act of replication.

Hr1: News Roundup, Climate and Coffee, Cephalopod Week

The cephalopod celebration continues, with a look at technology inspired by the brainy creatures. Plus, researchers estimate that climate change effects could wipe out 39–59 percent of Ethiopian coffee farms in the future.

Hr2:Political Math, Great Lakes

The North American Great Lakes are changing under the influence of pollution, invasive species, and climate change. How well will they weather this stress?

Hr1: News Roundup, Telescope, Sunscreen, Paleoanthropology

A new report says only one quarter of SPF products on the market are up to snuff. And a customizable melanin-like material could offer better protection from the sun.Plus, hominin fossils dating to 300,000 years ago have been found at a site in Morocco.