You'd be forgiven for thinking that our (returning) guest today, Space Engineer, Loay Elbasyouni, would be content with building the helicopter that flew on Mars. But that's not Loay. Now he's set his sights on tackling the problems of powering a permanently manned base on the moon. As you do.

We talk about his work, his proud Palestinian background, issues with trying to visit his homeland and why the artist is necessary to the engineer in making science fiction become science fact.

Follow him @AstroLoay

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