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

Hr 2: Apollo 13, Expanding Universe

In this 1995 segment from the Science Friday archives, Apollo 13 mission commander Jim Lovell tells the story of the flight’s survival after an explosion in space. Plus, In a 1999 conversation from the Science Friday archives, astrophysicists Neta Bahcall and Wendy Freedman explain the then-new revelation that the universe’s expansion was accelerating...not decelerating.

Hr1: Facts From Space, Moana Animation, Science Scores

Astronomer Dean Regas shares some of his favorite stellar trivia, and gives an guide to the big skywatching event of 2017 -- the solar eclipse. Plus, the challenges of animating Moana's water, and the subteties of scoring science movies.

Hr1: Clean Energy Investment, Sexual Harassment and Bias

A deep dive on the hurdles still facing women scientists in 2016, from sexual harassment down to the grant gap. Plus, a new group of wealthy investors are betting a billion dollars on an uncrowded but risky market.

Hr2: 21st Century Cures Act, Space Photography, Glass Universe

Astronaut Don Pettit has taken hundreds of thousands of photos from the International Space Station. Plus, how at the beginning of the 20th century, a team of female astronomers at the Harvard College Observatory worked to classify the stars.