Why spacecraft burn on re-entry (it's not what you think!)
Be Smart • 2026-06-04T16:20:18Z • 1:49:00 • intermediate • Science
Lead
Ever wondered why spacecraft turn into fireballs during re-entry? The answer might surprise you and change everything you thought you knew about space travel!
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Vocabulary
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kinetic
/kɪˈnɛtɪk/
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Definition
Relating to or resulting from motion.
Example
The kinetic energy of the spacecraft increased as it accelerated towards the atmosphere.
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atmosphere
/ˈætməsˌfɪr/
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Definition
The envelope of gases surrounding the earth or another planet.
Example
The spacecraft had to navigate through the atmosphere to safely return to Earth.
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plasma
/ˈplæzmə/
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Definition
A state of matter similar to gas but consisting of charged particles.
Example
The air transformed into plasma due to the extreme heat generated during re-entry.
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velocity
/vəˈlɑsɪti/
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Definition
The speed of something in a given direction.
Example
The spacecraft entered the atmosphere at an incredible velocity of 25,000 miles per hour.
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shockwave
/ˈʃɑkweɪv/
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Definition
A powerful wave of pressure that travels through a medium, often produced by an explosion or a fast-moving object.
Example
The spacecraft created a shockwave as it barreled through the atmosphere.
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blunt
/blʌnt/
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Definition
Having a rounded or flat end; not sharp.
Example
The blunt shape of the capsule helped to minimize heat during re-entry.
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