Technicians and engineers test the robotic arm on NASA's Mars rover Curiosity on Sept. 3, 2010 inside the Spacecraft Assembly Facility at NASA's Jet Propulsion Laboratory, Pasadena, Calif. Photo by NASA. Imagine this crazy scenario: A space vehicle…

A lab technician pipettes liquid into test tubes. Photo by Photo by Apostrophe Productions. Scientists nationwide are bracing for the impacts of the sequestration cuts, which are poised to strike a fierce blow to research. Policymakers aren't the…

The ocean, by some estimates, holds enough salt to cover the entire surface of the Earth, layered to the height of a 40-story office building. Much of the salt in the ocean comes from rock that gets…