How does a spacecraft land on Mars without airbags?
Quick Answer
Mars landers use a heat shield, parachutes, and then rockets or sky cranes to slow down in the thin Martian atmosphere. The exact landing method depends on the spacecraft’s mass and mission goals.
The Full Story
Landing on Mars is hard because the atmosphere is too thin to slow a spacecraft by parachute alone, but thick enough to create intense heating during entry. A mission typically begins with a heat shield, then deploys a supersonic parachute, and finally uses rockets for the last stage. NASA’s Curiosity rover, which landed in 2012, used a sky crane to lower the rover on cables for a soft touchdown. Perseverance, which landed in 2021, used a similar system, showing how engineers combine atmospheric braking with powered descent.
Key Facts
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"How do you land a robot on Mars when the air is too thin to help?"
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