10K views · 362 reactions | NASA has perfected new navigation technology that would make self-driving spacecraft and GPS beyond the Moon a reality. The Deep Space Atomic Clock is the first atomic clock small and stable enough to fly on a spacecraft beyond Earth's orbit. As NASA works to put humans on Mars and the Moon, the clock’s precise timekeeping will be key to these missions’ success. | NASA Jet Propulsion Laboratory | Facebook

13K views · 263 reactions | Space weather impacts all of us—from...