Post navigation NASA recently completed a series of tests of a mock Mars Sample Return mission. This rocket, the Low-Density Supersonic Decelerator or LDSD, is designed to slow a descending payload to safely deliver samples from the Martian surface back to Earth. The successful tests are a major milestone in the mission to bring Martian samples back to Earth for in-depth analysis. An international team of scientists have used a special surface to give Mars rovers better traction on slippery terrain by using a hexagonal pattern. The design, which creates a divergent set of traction for the wheels, enables the rovers to climb obstacles and traverse sloped surfaces with relative ease. This new patterned surface could potentially revolutionize the way rovers explore Mars and other planets.