What environmental hazards must spaceflight hardware withstand that aircraft do not face?

Answer

Extreme thermal cycling, radiation, and the absence of atmospheric pressure.

Vehicles designed for spaceflight must endure a hostile environment fundamentally different from the terrestrial conditions experienced by aircraft. Spacecraft engineering requires solutions for challenges such as intense radiation, extreme fluctuations in thermal temperature, and the total absence of atmospheric pressure, which are not primary engineering concerns for standard aeronautical vehicles.

What environmental hazards must spaceflight hardware withstand that aircraft do not face?

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Pronunciation of the word(s) "Spaceflight". - YouTube

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