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The "Lost Egypt: Ancient Secrets, Modern Science" exhibit at Boston's Museum of Science opens Sunday.

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Mimi Leveque (left), Peabody Essex Museum conservator, Becca Melius (center), curator of Boston's Museum of Science, and intern Rebecca Barber examined a mummy.

David L. Ryan/Globe Staff

The mummy had to be unpacked from its protective case.

David L. Ryan/Globe Staff

Leveque worked on the mummy on Tuesday.

David L. Ryan/Globe Staff

A closer look at the mummy's details. The exhibit features a mummy prototype in its "unwrapping" stage.

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Detail of a mummy in the exhibit.

David L. Ryan/Globe Staff

Intern Rebecca Barber looked over a coffin in the exhibit.