This is SCIENCE FRIDAY, I'm Flora Lichtman, filling in for Ira Flatow today. The moon, it's our nearest neighbor, but we don't know much about where our companion came from. In the 1800s, Charles Darwin's son, Sir George Darwin, proposed that maybe the moon just popped off from the Earth when the Earth was spinning much faster than it is today.
A NASA spacecraft captured the clearest recording yet of what space sounds like inside Earth's radiation belts. Craig Kletzing, a professor of physics and astronomy at the University of Iowa, explains what causes these eerie chirping noises, and what we can learn from them.
Matthew Inman, creator of the humor site "The Oatmeal," led an online drive that raised over $1 million for a new museum to honor the inventor Nikola Tesla. Inman discusses how to build a successful crowdfunding campaign, and why Tesla is the greatest geek who ever lived.
Almost exactly 33 years ago, Iranian activists stormed the American Embassy in Tehran and held 52 U.S. citizens hostage for well over a year. But six American diplomats escaped the embassy at the last minute and took refuge in the home of Canada's ambassador. A new movie called "Argo" tells the story of a CIA agent, played by Ben Affleck, who dreams up a plan to get them out of Iran, disguised as a film crew scouting locations for a science fiction movie. Here, he presents his idea to the secretary of state.