JPL test of an ion engine in preparation for Deep Space 1
![JPL test of an ion engine in preparation for Deep Space 1](https://planetary.s3.amazonaws.com/web/assets/pictures/_576x452_crop_center-center_82_line/20141102_ion1_300.jpg 576w)
Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Give TodayKnow the cosmos and our place within it.
Empowering the world's citizens to advance space science and exploration.