129 reactions · 22 shares | Our Deep Space Atomic Clock, like a GPS for navigating the solar system, is a technology demonstration that headed to space in June 2019. The mission has been extended through August 2021 so we can continue testing and improving the clock's ability to measure time consistently over long periods. This tech could fundamentally transform deep space navigation! Learn more: https://go.nasa.gov/31dIlvT | NASA Technology | Facebook