shock-heating

geophysics

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July 13, 2026

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Shock-heating in geophysics refers to the intense heating that occurs during the impact of celestial bodies, such as meteorites, with planets or moons. When an object strikes a planetary surface at hypervelocity speeds, it releases a tremendous amount of kinetic energy, similar to a nuclear explosion. This impact generates powerful shock waves that penetrate the surface, vaporizing, melting, and crushing material.123

The debris from the impact can then blanket the planet's surface, trapping heat and potentially causing the planet to melt. This process is a significant factor in the early development and geological history of planets, including Earth, and is responsible for the formation of meteorite craters.12

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Earth
Effects of planetesimal impacts
…is thought to have been shock-heated by the impacts of meteorite-size bodies and larger planetesimals. For a meteorite collision, the heating is concentrated near the surface where the impact occurs, which allows the heat to radiate back into space. A planetesimal, however, can penetrate sufficiently deeply on impact to produce…
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…is thought to have been shock-heated by the impacts of meteorite-size bodies and larger planetesimals. For a meteorite collision, the heating is concentrated near the surface where the impact occurs, which allows the heat to radiate back into space. A planetesimal, however, can penetrate sufficiently deeply on impact to produce…
Read More