Author: Carolyn Gramling / Source: Science News
![British Antarctic Survey’s Skytrain Ice Rise site](https://r4.mt.ru/r30/photoFAAA/20803629054-0/jpg/bp.jpeg)
Once destined for Mars, a prototype drill has a new mission: To bore into rocks buried deep beneath the ice in Antarctica.
In early January, researchers from the University of Glasgow in Scotland took a modified version of their Martian drill to Antarctica. They’re poised to send it down to the bottom of a 651-meter deep ice borehole completed January 10 by researchers with the British Antarctic Survey, or BAS. The goal is to bring back pieces of Antarctic bedrock that could help determine how long ice has covered Skytrain Ice Rise, a site near the Antarctic Peninsula, and provide clues to its past climate.
The original Martian drill, an ultrasonic percussive design, was tested in 2016 in Antarctica, which is often used for as a proxy for research of more far-flung places off the planet. That machine was designed to work in the low gravity of Mars, which makes it tough to apply enough force to bore into hard rock. Ultrasonic vibrations kick the drill into motion, creating a back-and-forth, oscillatory movement that hammers the drill bit down into ground. As the drill was expected to be carried on an unmanned Mars rover, it was also designed to work nearly autonomously.
The machine’s small size and ability…
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