This summer, extreme heat and drought have brought on larger than normal "fish kills" throughout the Midwest. Fish are dying by the tens of thousands. All Things Considered host Audie Cornish speaks with Aaron Woldt, Fisheries Program Supervisor for the U.S. Fish & Wildlife Service Midwestern Region, about what's happening in these waters.
One of the things the Mars rover will look for is organic molecules that could at least indicate whether there was once life on the Red Planet. But if searching for life in outer space is the goal, many scientists now say we might have better luck elsewhere — specifically one of Saturn's moons, Enceladus.
Fighting continued Sunday in Syria between government forces and rebels for control of the country's second city, Aleppo. In another development, rebels say they are holding a group of Iranians, who they accuse of being on a reconnaissance mission in Damascus. Iran says the group comprises pilgrims.