An illustration of the various elements of the overall Mars Sample Return effort. Credit: NASA/JPL-Caltech WASHINGTON — NASA has confirmed that one scenario for the cost of its Mars Sample Return (MSR ...

Responding to an independent review of NASA's ambitious Mars Sample Return mission, agency officials said Monday they will seek fresh ideas from agency engineers, researchers and the private sector to ...

Those billions, as JPL program manager Richard Cook and NASA mission director Jeff Gramling reportedly told the agency’s leaders, would only account for testing and building the sample return portion ...