Final answer:
Mars has been visited by the most space probes as of today. Several space probes, including rovers like Curiosity and Perseverance, have been sent to Mars to study its geology, climate, and the possibility of past or present life.
Step-by-step explanation:
The planet that has been visited by the most space probes as of today is Mars. Mars has been a focus of exploration due to its potential for habitability and its similarities to Earth. Several space probes, including rovers like Curiosity and Perseverance, have been sent to Mars to study its geology, climate, and the possibility of past or present life.