Kirsty Young's castaway is space scientist Maggie Aderin-Pocock.
She has, she says, a special relationship with the moon, one that started when she first saw The Clangers as a small child. As a teenager she made her own telescope so she could study the moon more closely. Now she makes highly technical optical equipment for satellites, but says she still harbours desires to go into space - her dream job is building a telescope on the moon. She says: 'From the age of three, I wanted to get into space and I still do. It's been the driving force of my life really, that desire to get out there one day.'
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