The images of the vent represent the first direct geological evidence of recent volcanic activity on the surface of Venus, according to the researchers
When scientists recently took a closer look at archival images of the surface of Venus, they discovered something new: evidence of volcanic activity on Earth's "twin."
. A study detailing the findings was published Wednesday in the journal Science, and it was presented at the 54th Lunar and Planetary Science Conference in The Woodlands, Texas. "I didn't really expect to be successful, but after about 200 hours of manually comparing the images of different Magellan orbits, I saw two images of the same region taken eight months apart exhibiting telltale geological changes caused by an eruption."
Magellan's image of the vent from February showed a circular vent spanning less than 1 square mile with steep interior sides and areas of drained lava on the slopes. "Only a couple of the simulations matched the imagery, and the most likely scenario is that volcanic activity occurred on Venus' surface during Magellan's mission," Hensley said. "While this is just one data point for an entire planet, it confirms there is modern geological activity."
While it's possible that a quake might have triggered the collapse of the volcanic vent's walls, the researchers believe such activity would have also caused a volcanic eruption.
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Magellan spacecraft images reveal volcanic activity on VenusThe images of the vent represent the first direct geological evidence of recent volcanic activity on the surface of Venus, according to the researchers
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