In Photos: How to Grow a Planet Photos taken during filming of the Prof Iain Stewart documentary series. of 7 Iain Stewart in his Climbing Gear Prof Iain Stewart dons his climbing gear to show off some of the most spectacular of Earth's wonders. Controlled Conditions Growing plants under controlled conditions. Plants need some key ingredients; light, soil and water. Iain Stewart and a Dinosaur Skull Iain Stewart lies next to a fossilised sauropod dinosaur skull. Iain Stewart and Flowers Flowers not only lend colour to the Earth's land, they also support a host of animals. Cave Underground you can see some of the slow geological processes it takes to build a planet. Fire Fire is one of the key tools for regeneration. On Horseback Srveying the planet on horseback. Slideshow Pause Show Images Hide Images Tweet