Over 40 years ago, NASA launched two spacecrafts to take pictures and explore the gas giants in our solar system. Well, those two space probes are still soaring through the galaxy, but now they have started a new phase. They have left our little solar neighborhood and moved onto deep space. These spacecraft won’t last forever, though, and NASA has recently talked about how these probes will shut down and when.
Watch next video NASA 2020: Are you ready?