Earth's population crossed the 7 billion mark Monday. The growing population has been the subject of doomsday scenarios, but Colum Lynch worries whether the U.S. and other wealthy countries will soon have too few citizens. He predicts the world population will decline by the end of this century.
Days after leading his team to a 7th game win in the World Series, Tony La Russa has announced that he has retired. La Russa changed the game of baseball and is among the top managers in the Major Leagues. Over his 33-year career, he won the world series three times.
A new report in the journal Lancet Infectious Diseases says evidence that the flu shot offers protection in adults aged 65 years or older is lacking. Host John Dankosky and guests discuss the report, the upcoming flu season, and whether seniors should get the flu vaccine.
In a new four-part television special based on his best-selling book, physicist Brian Greene takes on the nature of time and space, multiverses, and other hard-to-wrap-your-mind-around concepts in cosmology. Greene talks with guest host John Dankosky about the new series.
Army microbiologist Bruce Ivins, the FBI's prime suspect in the 2001 anthrax attacks, died before his trial in an apparent suicide, and the case is now closed. John Dankosky and guests discuss new investigations that question whether scientific evidence against Ivins was conclusive enough to hold up in court.