What bodies of the solar system do not require rocket technology for space flight?

If the speed of a person’s jump on a given body exceeds the second cosmic one, then the person will leave him forever. Such conditions can be created on the surfaces of some asteroids and planetary satellites.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.