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Impact History

All articles tagged with #impact history

science2 years ago

Ancient, high-energy impacts fuel Venus volcanism

Researchers have used computer models to study the early impact history of Venus and found that the planet likely experienced higher-speed, higher-energy impacts that created a superheated core. This intense volcanic activity has resurfaced Venus and explains why it has a youthful surface despite lacking plate tectonics. The findings have important implications for understanding the geodynamic evolution of Venus and may be confirmed by upcoming missions to the planet.

science-and-technology2 years ago

Efficiently Unraveling Lunar Craters

Researchers have demonstrated that machine learning can be used to estimate the ages and densities of lunar craters, providing valuable insights into the moon's impact history. By training an algorithm on over 50,000 images of previously characterized craters, the researchers were able to improve our understanding of the moon's surface. However, the algorithm's accuracy was affected by lighting conditions and the presence of rocks or buried craters. With careful oversight, machine learning can offer a wealth of information about lunar craters.