There's a plan for the National Park Service to push rules prohibiting drones in parks without a permit.
The park service is ordering all 401 of its parks to instate new rules that would ban the launch, landing, and flight of drones within park grounds. Parks would still be allowed to grant permits to parties such as researchers, rescue operations, and filmmakers to operate them, so long as they explain why a drone is necessary for their work.
NASA scientists are already talking about sending a drone (quadcopter) to Saturn's moon, Titan. But, the talk may not be reality until say 2040.
The ambitious idea was outlined by Larry Matthies, a research scientist and supervisor at NASA’s Jet Propulsion Lab in California, and involves a drone that would be capable of flying out of a lander or balloon. The drone would explore the moon’s landscape and seas, collect samples, and return to the “mothership” in order to recharge its batteries and submit whatever it collects for analysis.