Explore Episode Segments
Astronauts Prepare for Departure
Weâ€™ll check in with crewmembers on board the International Space Station, just days before several are scheduled to return to Earth after months in orbit.
Bidding Farewell to Lonesome George
He never spoke, but affected many. Weâ€™ll look back on the life of the Galapagos icon Lonesome George.
A Tale of Two Coastlines, Skirted by Swelling Seas
Rising sea levels are swallowing up U.S. coastlines–with a flood of consequences onshore.
Alan Turing at 100
A look at the man who helped create the modern world–and was promptly forgotten by it.
Meet the Energy-Saving Gadgets of the Future
Floors that generate electricity from footsteps. A GPS that outsmarts traffic jams. Innovations like these could be the next big thing–and we have student inventors to thank.
Spider-Man Gets a Physics Lesson
Do the laws of physics apply to superheroes? Sort of, says James Kakalios.