Almost all the planets in the inner solar system have deep scars on their surfaces. They were scarred after a period of meteorite bombardment in the early years of their formation. Mars, Mercury and Earth not only have multiple craters throughout their terrain, but some of them exceed 100 kilometers in diameter. Venus is the exception. So far, it has managed to look like a ‘smooth’ planet, with only small impact marks.
Astronomers have located at least 1,000 impact craters on Venus. None are really big. There are also no external elements that justify the lack of powerful impacts or a geological process that hides the marks, as on Earth. A new study on a strange portion of the surface of Venus has just found the probable answer to the enigma: in reality, there are giant scars, just not as obvious as on other planets.
The cult rings of Venus
A small group of international researchers has mapped a region of Venus known as Haastte-baad Tessera (HTRC) with radar. This territory is special because it is one of the oldest surfaces on the planet and has marks that, seen from an overhead plane, look like concentric circles.
After several studies of the area, researchers report having found evidence of at least two consecutive impact events, whose traces are barely visible. The only record is a set of concentric marks detectable with radar.
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