At age 11, actor Alan Alda asked his teacher what a flame was. He received a confusing answer: "oxidation." In the spirit of better communicating science, he's created the "Flame Challenge," a contest in which scientists do their best to define a flame. Eleven-year-olds from around the world will judge the entries.
As part of an NIH-funded project, Bradley Smith, associate dean for creative work, research and graduate education at the University of Michigan, posted a collection of optical images and MRI scans of human embryos to the web. Intended for a clinical audience, Smith talks about the unexpected response he got from the public.
The complexity, scale and sliding timetable for implementation of the federal health overhaul make it tough to figure out exactly what's happened so far. To help you sort through some key provisions, here's a scorecard.
In effort to add pressure on Syrian President Bashar Assad, the European Union has announced new sanctions on a dozen Syrians, including Assad's wife, his mother, sister and sister-in-law.
"I cannot say to you in strong enough terms how much we are concerned about what's going on in Syria," said Catherine Ashton, the EU's foreign policy chief, according to CNN. "I'm really worried about the escalating spiral of violence there.
The White House has made its choice for who should lead the World Bank. Jim Yong Kim is currently the president of Dartmouth University. He's a physician and a global health expert and something of a surprise to people who've been watching this process.
Here is President Obama at the White House this morning.
Next week, the Supreme Court will hear challenges to the health care law. Continuing Tell Me More's preview of the case, host Michel Martin sits down with Neal Katyal. He is former Acting Solicitor General and defended the Affordable Care Act in lower courts.
Mitt Romney has an impressive victory in Illinois, gets Jeb Bush's backing, revives the inevitability argument and then gets bogged down in an Etch A Sketch distraction. Plus: Illinois primary results, and Barbara Mikulski breaks a record. NPR's Ken Rudin and Ron Elving have this week's political roundup.