The universe is being pushed apart at a faster and faster rate. And the culprit? Dark energy. Astrophysicist Adam Riess shared the 2011 Nobel Prize in Physics for that discovery, and now's your chance to ask him about it--or anything else you've been wondering about the cosmos.
And I'm Flora Lichtman. In 2007, thousands of people in Mexico took to the streets, protesting the price of tortillas. In three months, the price of corn had gone up 400 percent. Why? According to my first guest, it all started with a spike in oil prices triggered by Hurricane Katrina. That led to increased demand for ethanol, and U.S. farmers who grow a lot of the corn that Mexicans eat planted less corn for eating and more corn to make ethanol.
Federico Macheda of Manchester United (center) challenges players from Shanghai Shenhua during a friendly match between the two teams in Shanghai, China, on Wednesday.
Speculation is rampant over the salary of Shanghai Shenhua's Didier Drogba, formerly with Chelsea, shown here during his Chinese Super League debut against Guangzhou Fuli in Guangzhou in southern China, July 22.
Credit Louisa Lim / NPR
Aspiring soccer stars try to score against former Manchester City goalkeeper Alex Williams in Beijing. Local soccer clinics provide visiting international teams publicity for themselves and their sponsors.
Credit Angie Quan for NPR
Hardcore fans were allowed to watch a Manchester City training session ahead of a match against rival Arsenal in Beijing's Bird's Nest stadium Friday.
Originally published on Thu August 9, 2012 10:20 am
On a gray, polluted Beijing morning, parents peer through a fence anxiously at their little darlings' wobbly dribbling skills on the soccer pitch, as they try to score goals against former Manchester City goalkeeper Alex Williams.