The crown jewel of Henry VIII’s 16th century fleet was its flagship, the venerable Mary Rose. More than 500 years after its launch, the vessel remains a precious cultural treasure. Though she ploughed the Atlantic and battled with her heavy cannons for 34 years – and laid buried beneath the turbulent English Channel for 437 more, bacteria and chemicals have begun eating away at her remnants, on display at the Mary Rose Museum in Portsmouth, England. Thankfully, the ship’s conservators have received a helping hand.A new X-ray method has allowed an international team of researchers to identify zinc-sulfide nanoparticles in...