Co-chief scientists, Richard Levy and Tina van de Flierdt celebrate the drilling milestone
Source: Anthony Powell, Antarctica New Zealand
Ollie Twigge, Darcy Mandeno, James McPhail and Tim McPhee celebrate breaking through the Ross Ice Shelf and into the ocean below
Source: Anthony Powell, Antarctica New Zealand
The ledger recording of the breakthrough moment (watch out James - time for a swim in the flubber!)
Source: Anthony Powell, Antarctica New Zealand
The borehole drilled by the Hot Water Drill nearly 600m into the Ross Ice Shelf
Source: Anthony Powell, Antarctica New Zealand
Tim McPhee announces progress to the camp
Source: Veronika Meduna