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All Eyes on Antarctic Drillers at Scott Expedition Centennial
from ScienceNOW Daily News
Along with all the festivities surrounding the anniversary of explorer Robert Falcon Scott's reaching the South Pole on 17 January 1912, Antarctic researchers are at the edge of their seats waiting for news that will merit another celebration. The centennial coincides with an expected new landmark: This week, a Russian team drilling into Lake Vostok in the center of the Antarctic continent is likely to break through the ice to water. It will be the first time that a subglacial lake has been breached. These modern-day explorers hope to discover whether Vostok, which at 5000 km3 is the third largest lake on the planet, is teeming with hidden, cold-loving life that could have evolved separately from the rest of the world for hundreds of thousands of years.
Microbiologist John Priscu of Montana State University in Bozeman, who was one of the original planners of the Vostok mission, has been getting regular updates from the Russian team. As of 13 January, they had reached a depth of 3737.5 meters, about 15 meters away from liquid water. With three teams drilling around the clock and making progress at an average of 2 meters per day, Priscu says they're on track to break through within the week. "This is an epic event. I really wish them luck," he says. "I wish I was out there with them."
After drilling 3720 meters last February, time ran out for the team and the project was stymied just 29.5 meters from its destination as winter set in. Over the summer, they modified their drill bits and now the team is back at work with plenty of time to spare. They had left the large hole filled with antifreeze, so it was ready and waiting for them. It will remain open for years to come, Priscu says, potentially allowing other teams to sample the waters in the future.
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