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Magellan mission reveals possible tectonic activity on Venus

  • Researchers using archival data from NASA's Magellan mission found likely tectonic-like activity on Venus as of 1994.
  • This discovery stems from investigating coronae, large circular features linked to mantle plumes that deform Venus's surface without tectonic plates.
  • The study revealed 52 coronae over hot, buoyant magma plumes that drive crust recycling and surface deformation similar to early Earth processes.
  • Gael Cascioli explained that while coronae are absent on modern Earth, they might have been present in the planet’s early history before the onset of plate tectonics.
  • Upcoming missions like VERITAS will increase gravity data resolution by two to four times, potentially revolutionizing understanding of Venusian geology and its tectonic implications.
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Phys.org broke the news in United Kingdom on Wednesday, May 14, 2025.
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