NASA's Mars rover Curiosity used its Radiation Assessment Detector (RAD) to measure radiation exposure on the way to Mars. Now, it's recording similar data on Mars' surface. This image is a composite self portrait taken on Feb. 3, 2013.
There was great fanfare when the Mars Science Laboratory launched in November 2011, and again when its precious cargo — NASA's Mars rover Curiosity — touched down on the red planet in August 2012.
The eight months in between had drama of their own. Curiosity was constantly bombarded with radiation as it traveled through space — high-energy protons thrown out by the sun, and galactic cosmic rays slicing through the solar system from distant supernovas.
All Things Considered's Found Recipes series isn't just about food. It's about drinks, too — including those that require a valid form of ID.
And the best cocktail is one that's well-balanced, according to bartender Chad Phillips. It will "leave you feeling completely satisfied and better about your life than the second you sat down at my bar," he says.
This is TALK OF THE NATION. I'm Neal Conan, in Washington. Over more than two years, the conflict in Syria progressed from protest to civil war, opposition aims from reform to revolution, and the nature of the fighting became increasingly sectarian. Now another important turn as foreign troops openly join one side.
Technological developments in prenatal testing and screening methods have given women more information about the genetic status of their fetuses. Increased access to information can leave mothers and their partners with difficult choices about whether to continue or terminate a pregnancy.