The mysterious "18Ka" event, hidden deep in the layers of Antarctic ice, prompted scientists and engineers, working together, to develop new "replicate coring" techniques. Listen to their story and observe the practices they used, as they drilled back in time to decipher if volcanic actions played a role in the end of the last ice age.

This video, edited by Courtney R. Hammond '11, was provided by the U.S. Ice Drilling Program. (Dartmouth engineering professor Mary Albert serves as Executive Director of the U.S. Ice Drilling Program Office.)