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Ishtar Terra, right next to the north pole of Venus, is a large, continent-sized highland region, colored red in the center of the image.Earth is bountiful and welcoming, with a soft, safe atmosphere, sloshing oceans, forgiving temperatures, and land masses carpeted with growth.
Well, now scientists have found something that really threw them for a loop. Venus' tesserae may have formed through processes very similar to those that producedof Monash University in Australia."We did not expect Venus, with its scorching 460 °C surface temperature and lack of plate tectonics, to possess such complex geological features."
– it's not a planet that invites human exploration – but for 15 years, between 1989 and 1994, NASA's Magellan spacecraft used a radar probe to map, in detail, the surface of Venus, beneath its cloak of sulfuric acid clouds. Their results suggest that the tesserae may have formed just like the cratons, surging upwards from within the molten interior of Venus to emerge on the surface and harden into the planetary crust.."The features we found on Venus are strikingly similar to Earth's early continents, suggesting that the dynamics of Venus' past may have been more similar to Earth's than previously thought.
France Dernières Nouvelles, France Actualités
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