One of the mysteries of the English language finally explained.
A microscopic particle in space or of extraterrestrial origin which is small enough not to burn up in the earth's atmosphere but to drift to the surface instead.
- ‘If a micrometeoroid or piece of space debris penetrates the tank, the dregs can ignite, causing an explosion that shatters the rocket body and creates a cloud of debris.’
- ‘Hazardous micrometeoroids and radiation also threaten spacewalkers, and with no atmosphere and therefore no atmospheric pressure, fluids in the human body would boil.’
- ‘The moon lacks the shield provided by even a thin planetary atmosphere, such as Mars, so lunar explorers will have to withstand the relentless bombardment of harmful solar radiation and pelting rain of micrometeoroids.’
- ‘A chemical analysis of impact crater residue allowed him to distinguish between impacts due to naturally occurring micrometeoroids and those due to artificial space debris.’
- ‘He or she points out that the shuttle would be less exposed to micrometeoroids and orbital debris at the altitude of Hubble than at the lower altitude of the space station.’
- ‘Other factors include charged particle radiation, neutral atomic particles, magnetic fields, micrometeoroids, and changes in gravity, not to mention environmental factors imposed by the spacecraft itself and the launch vehicle.’
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