Egypt's world-famous archaeologist back in the field

Egypt's former antiquities minister and famed Egyptologist is back in the field after joining a group of experts scanning the pyramids for new discoveries.

Zahi Hawass says he hopes the new scanning technology, which uses subatomic particles known as muons to examine the 4,500 year-old burial structures, will help solve their remaining mysteries.

Late last year, thermal scanning identified some anomalies, including a major one in the largest of the Great Pyramids of Giza outside Cairo.

Hawass was appointed Thursday to head a scientific committee to investigate the structures.

For more than a decade he was a celebrity starring in TV documentaries, but was dismissed after Egypt's 2011 uprising that toppled long-time autocrat Hosni Mubarak and faced corruption charges, of which he was later cleared.