4-Inch Drill

The inner barrel of the 4-Inch Drill lays on a table at WAIS Divide, Antarctica. Photo: Steven Profaizer / National Science Foundation

Beth Bergeron (left) and Michael Jayred (right) drilling a 130-meter deep ice core at WAIS Divide, Antarctica, during the 2006-2007 summer field season. Photo: Joseph Souney

IDP driller Beth Bergeron (right) drilling a 200-meter deep ice core in northeast Greenland (near Tunu) during the 2013 field season. Photo: Olivia Maselli

The 4-Inch Drill near South Pole Station, Antarctica, during the 2016-2017 summer field season. Credit: Mike Waszkiewicz

The 4-Inch Drill in northeastern Greenland (near Tunu) during the 2013 field season. Photo: Olivia Maselli

IDP driller Terry Gacke drilling an ice core in northern Greenland during the 2010 field season. Photo: Bob Hawley

IDP driller Terry Gacke (left) and scientist Bob Hawley (right) drill an ice core in northern Greenland during the 2010 field season. Photo: Bob Hawley

Setting up the 4-Inch Drill's tower with Mt. Waddington (British Columbia, Canada) in the background. Photo: Doug Clark