How does a lunar lander land gently on the Moon without parachutes?
Quick Answer
It uses engines to slow down all the way to the surface, because the Moon has no atmosphere for parachutes to work. Landing depends on careful thrust control and navigation.
The Full Story
The Moon has essentially no atmosphere, so spacecraft cannot use parachutes to slow down. A lunar lander must rely on its engines to reduce speed from orbit and then manage a controlled descent. Sensors and navigation systems measure altitude and motion while the engines throttle to keep the craft steady. Apollo lunar modules used descent engines and landing radar, while modern robotic landers use updated guidance and hazard-avoidance systems. Because the landing site can be rocky or sloped, precise timing and thrust control are critical.
Key Facts
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