Sascha is a U.K.-based trainee staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe.
A giant impactor that severely dented Mars' surface roughly 2.3 million years ago also carved out 2 billion smaller craters on the Red Planet as it shattered, a new study finds.
"Corinto is a fresh impact crater in Elysium Panitia that produced one of the most extensive systems of…secondary craters on Mars," the researchers wrote in a study released at the conference. The object that formed Corinto pockmarked the surrounding landscape with smaller craters, as fragments splintered off and shot outward in ray-like patterns still visible today, according to the study. These secondary craters are concentrated in an area to the south and southwest of Corinto, with the farthest flung ejecta landing 1,150 miles from the main crater.
The researchers grouped the secondary craters into four"facies," based on their shape and distance from the main crater. Facies 0 craters, those closest to Corinto, appeared semicircular, whereas the farthest away, Facies 3 craters, were long and narrow.
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