Exploratory robots can be used anywhere. There are different designed robots for each project/ mission. Say NASA wants to know what different things are on Venus. They would create a robot with certain exterior and interior so it would not break while being shipped off to Venus. There are even robots that go under water that can explore a whole bunch! A couple years ago explorers sent two robots into the Titanic underwater and they took pictures of the inside of the titanic. They were controlled by controllers. They span of how may exploratory robots we can build are amazing!!!
The video above was all filmed by Underwater/ Exploratory robots! This explains that exploratory robots can do amazing things!