The Deep Space Atomic Clock mission has been extended. It's testing hardware that could be used in future navigation technology by both human and robotic explorers making their way around Mars and other deep-space destinations. http://go.nasa.gov/3hYjLW4 | NASA Jet Propulsion Laboratory

On board the SpaceX Falcon Heavy: NASA Jet Propulsion Laboratory’s Deep Space Atomic Clock. It’s small, ultra-precise and designed to fly on a spacecraft beyond Earth orbit. It’s like a GPS… to navigate the solar system! Watch: https://youtu.be/4GEeak4Vphs | NASA - National Aeronautics and Space Administration