Researchers will launch an expedition Thursday to survey two shipwrecks linked to polar explorers Ernest Shackleton and Robert Falcon Scott.

Neither ship has been surveyed previously using advanced technology

Researchers will travel to the bottom of the North Atlantic to survey two legendary shipwrecks, once tied to a pair of iconic 19th-century polar explorers.

Researchers will launch an expedition Thursday to survey two shipwrecks linked to polar explorers Ernest Shackleton and Robert Falcon Scott.