Young fans of the German national soccer team drink iced tea in July 2010 as they watch the FIFA World Cup semi-final match Germany vs. Spain in an Arabic cafe in Berlin's Neukölln district. The neighborhood has gentrified rapidly in recent years, but many of the white families moving in leave once their children reach school age. Local groups are trying to change that.
Along with sperm, the in vitro procedure adds fresh mitochondria extracted from less mature cells in the same woman's ovaries. The hope is to revitalize older eggs with these extra "batteries." But the FDA still wants proof that the technique works and is safe.
Chris Nickels for NPR
With the help of researcher Sabudo Boraru (right), anthropologist Chris Campisano, of Arizona State University, takes samples from the fossil-filled Ledi-Geraru project area in Ethiopia. The jaw bone was found nearby.
Courtesy of J Ramón Arrowsmith
Russian opposition leader Boris Nemtsov, who was shot dead last Friday, was one of the most outspoken critics of President Vladimir Putin. No arrests have been made in his killing.