did a satellite or a robot explored earth if so in what year did they explored it?

Yes, satellites and robots have explored Earth in various capacities. The first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957, marking the beginning of satellite exploration. Additionally, robotic missions, such as those conducted by unmanned aerial vehicles (UAVs) and ground-based robots, have been used extensively for Earth observation and research since the late 20th century.