Science succeeds by failure, just as surely as it works by success. We slowly come to know how the physical world works by learning that what we thought was true is all wrong. Science teaches us to ...

Roadside bedrock outcrops are all too familiar for many who have taken a long road trip through mountainous areas on Earth. Martian craters provide what tectonic mountain building and man’s TNT cannot ...

This image shows exposed bedrock on floor of an impact crater that is also visible in a CaSSIS observation. However, that image did not contain optimal bands for exposed rock. Higher resolution ...