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Meteors don't just burn up. What really happens is far more violent

By · Published by Everything Blog

In short

When entering the atmosphere, space rocks generate shock waves and bright fireballs as high-speed airflow strips away molten droplets. The melting process stabilizes around an altitude of 60 kilometers and accounts for the loss of up to 40 percent of an object's mass. Further down, increasing air pressure shatters the rock far sooner than anticipated, likely because entry heat exploits internal cracks formed during previous collisions in space.

Key points

  • Objects entering Earth's atmosphere lose substantial mass through high-altitude melting r…: Objects entering Earth's atmosphere lose substantial mass through high-altitude melting rather than simple evaporation.
  • Prior collisions in space leave internal cracks that cause descending rocks to fracture u…: Prior collisions in space leave internal cracks that cause descending rocks to fracture under unexpectedly low atmospheric pressure.
  • Documenting these breakup mechanisms helps researchers better predict meteorite debris fi…: Documenting these breakup mechanisms helps researchers better predict meteorite debris fields and the dynamics of hazardous asteroid explosions.

Sources checked by our analysis pipeline: 1

- Date:

- October 28, 2026

- Source:

- SETI Institute

- Summary:

- Scientists have uncovered seven surprising stages that space rocks go through as they hurtle toward Earth, revealing that melting and violent fragmentation, rather than simple evaporation, determine their fate. The discovery could help explain why meteorites scatter across the ground and how dangerous asteroids explode in Earth's atmosphere.

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Scientists have gained a clearer understanding of what happens when rocks from space plunge into Earth's atmosphere and survive the journey to the ground. After examining video recordings and photographs of 75 meteorite falls, researchers identified seven stages that describe how these objects transform into meteorites. Their analysis reveals that melting and breaking apart play a much greater role than previously believed in determining how much material a rock loses, how quickly it slows down, and where its fragments eventually land. The findings were published in the journal Meteoritics & Planetary Science.

"We used to think that solid rocks would evaporate from the enormous heat and brilliant light generated in the air collision," said meteor astronomer…

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