Scientists have trained computers to identify the likeliest places in Antarctica to find fallen meteorites.
The hunt for meteorites may have just gotten some new leads. A powerful new machine learning algorithm has identified
where scientists are likely to find a bounty of the fallen alien rocks, researchers report January 26 inAntarctica isn’t necessarily the No. 1 landing spot for meteorites, bits of extraterrestrial rock that offer a window into the birth and evolution of the solar system. Previous estimates suggest more meteorites probably
. But the southern continent is still the best place to find them, says Veronica Tollenaar, a glaciologist at the Université libre de Bruxelles in Belgium. Not only are the dark specks at the surface starkly visible against the white background, but quirks of the ice sheet’s flow can also concentrate meteorites in “stranding zones.”
The trouble is that so far, meteorite stranding zones have been found by luck. Satellites help, but poring through the images is time-consuming, and field reconnaissance is costly. So Tollenaar and her colleagues trained computers to find these zones more quickly.This diagram shows what happens when a slowly creeping ice sheet, with meteorites embedded in deeper layers, encounters a topographic rise such as a mountain.
Combining a machine learning algorithm with data on the ice’s velocity and thickness, surface temperatures, the shape of the bedrock and known stranding zones, Tollenaar and colleagues created a map of 613 probable meteorite hot spots, including some near existing Antarctic research stations.articles, delivered to your inbox
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