2min chapter

Cautionary Tales with Tim Harford cover image

Cautionary Conversation: Flying on Empty

Cautionary Tales with Tim Harford

CHAPTER

How to Slash a Spacecraft Straight Into Mars

Spacecraft was flying from earth to mars when thrusters fired, changing its trajectory. But they didn't know how high it was so used newton's instead of pounds force. They came in at 57km above the surface of mars - much closer than expected. The extra drag slowed them down a lot more than they had thought. Anda billions of us lost money because of this error.

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