PASADENA, California, Aug. 8 (TNSres) -- NASA's Jet Propulsion Laboratory issued the following news: Engineers on NASA's NEOWISE (Near-Earth Object Wide-field Infrared Survey Explorer) mission commanded the spacecraft to turn its transmitter off for the last time Thursday. This concludes more than 10 years of its planetary defense mission to search for asteroids and comets, including those that could pose a threat to Earth.The final command was sent from the Earth Orbiting Missions Operation Ce  more