| 摘要 |
PROBLEM TO BE SOLVED: To provide a planet probe for landing on the ground surface of a unknown planet without overturning. SOLUTION: A body part of the planet probe is mounted with a sensor for measuring an altitude from the ground surface and a one's own speed and an inverse injection system for generating propulsion in the opposite direction of a descent to the ground surface and is constituted so as to prevent the overturning of the planet probe by a small injection system for generating propulsion in the opposite direction of the inverse injection system or a fixing member for fixing the planet probe to the ground surface.
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