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A giant impact crater the size of Iowa was spotted on Saturn's moon Titan by NASA's Cassini radar instrument during Tuesday's Titan flyby.
A huge annular feature with an outer diameter of approximately 440 kilometers (273 miles) appears in this image taken with Cassini's Titan radar mapper. It resembles a large crater or part of a ringed basin, either of which could be formed when a comet or asteroid tens of kilometers in size slammed into Titan. This is the first impact feature identified in radar images of Titan
Mars has much better hole, Hellas
Originally posted by skychief
Wow, nice find. Man, that had to be one hell of an explosion. It makes one wonder about the date of this impact as Titan is so dynamic and it's still visible. Of course, some large impact craters are still visible on earth so I guess we could be talking about thousands of years.