Lithosphere

It turns out that Venus (almost) has tectonic plates

Beneath Venus’s acidic clouds and crushing atmospheric pressure lies a rocky surface strewn with geological mysteries. Sometimes referred to as Earth’s “sister planet” because it is similar in size with a similar iron core, molten mantle, and rocky crust, there is evidence that Venus was once a aquatic world like …

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Venus’s cracked surface behaves like sea ice

The Magellan spacecraft captured this radar view of Venus, showing the largest dark red tectonic block in the center, which is roughly the size of Alaska. The lighter colors around the block are warps and ridges. Image via NASA-JPL / Paul Byrne / NCSU. Cracked surface of Venus Venus is …

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The surface of Venus could be shattered into pieces

No other solid body in the solar system has an Earth-like crust. From Mercury to Mars, passing through many moons, most worlds have a one-piece crust. Rather, our planet has tectonics, large plates moving across the molten upper mantle. Another exception to the one-piece surface could be Venus, new evidence …

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USGS issued a yellow advisory for 6 U.S. volcanoes today

The Gareloi stratovolcano is the westernmost volcano in the United States. Image: USGS / McGimsey RG The USGS has issued a code yellow and advisory alert for six volcanoes they are tracking across the country; The USGS says these volcanoes “are showing signs of elevated unrest above known background level.” …

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The active surface of Venus examined

Credit: NC State University, based on original NASA / JPL images Despite their close similarities in terms of mass and composition, Earth and Venus have evolved differently, at least for the past 0.5 to 1 billion years. On the one hand, an uncontrollable greenhouse effect on Venus produced an average …

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