Science brief
Venus Awakens
High-resolution simulations suggest the planet is geologically alive.
Signalpoint TeamBrief
Science
Venus is not a dead world — new geodynamic simulations suggest its interior remains active, which could force astronomers to rewrite planetary heat-loss models.
BackgroundFor decades, scientists assumed Venus lacked active plate tectonics due to its thick, dry crust and lack of water. While radar imagery from the Magellan spacecraft in the 1990s showed massive faults, determining if they were active remained impossible.
Points
- ETH Zurich researchers simulated how rift valley edges evolve, proving that active rifts maintain steep shoulders while inactive ones flatten over millions of years.
- The model's steep shoulders match actual radar imagery, indicating the valleys are widening at a rate of 3 to 10 centimeters annually.
- The research suggests that localized volcanic and tectonic activity continues to reshape the Venusian surface, transforming our understanding of planetary evolution.
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