The Duke of Kent was in town on Tuesday meeting a Martian called Bruno.
HRH met the ExoMars Rover prototype, used to explore a mock-up Martian environment at Stevenage aerospace firm Astrium.
A spokesman for the company said the duke has a personal interest in the space industry and had asked to visit.
βItβs fantastic to have a member of the royal family come here. He travels all over the world and all over the UK. He is an ambassador for UK industry.β
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