Fast-spreading crack threatens giant Antarctic ice shelf
Larsen C could shed Delaware-sized section within next few years
![crack in Larsen C ice shelf](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/06/ts_iceshelf_feat_free.jpg?fit=860%2C460&ssl=1)
BREAK UP Last year a crack stretching tens of kilometers rapidly spread across Larsen C, shown here in 2009, one of the largest ice shelves in Antarctica. The crack could break off a massive area of ice and threaten the ice shelf’s stability.
Michael Studinger/NASA Goddard Space Flight Center