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.
Science Or Folklore? — The Old Farmer's Almanac predicts winter weather months in advance. Is that even scientifically possible? Meteorologist Jason Samenow, of The Washington Post's Capital Weather Gang, talks about the science and art of seasonal forecasting, and why even the pros at NOAA sometimes get it wrong.
Earlier this year, Twitter announced a new device and a policy of weeding out and removing offensive content from its site if a foreign government requested it.
Thursday, the company tweeted that it's done so for the first time — blocking a neo-Nazi group's account in Germany. Today, Twitter withheld another account — this one in Britain, belonging to a right-wing member of the European Parliament who tweeted support for discrimination against gays. Government officials are investigating both cases.