This is the Guardian.

My first time I floated to the window of the spaceship,

we were coming across the UK and Ireland

and just heading into Brittany.

And my first glance out the window was overwhelming. There was far too much there for me to be able to absorb.

I was like an ant. there for me to be able to absorb.

I was like an ant looking at the Mona Lisa,

you know, it's like, I'm like, wow.

Just over 200 people have been lucky and skilled enough to experience a spacewalk.

Chris Hadfield is one of them.

And the world doesn't change, but you get better at looking at it and seeing it and picking out the subtleties and the beauties and the nuance of it.

And then they don't just go away. They now are part of who I am.

It's safe to say that Chris Hadfield is a phenomenon.

As an astronaut, he lived on the ISS for 144 days.

He was the first Canadian to walk in space,

and probably the only person to sing space oddity whilst actually

floating in a tin can far above the world. Planet Earth is blue and there's nothing left to do.

And now he's written a book, a novel. The Apollo Murders is a thriller set during the Cold War in space obviously.

In it, the Americans and the Soviets are vying to get hold of something

incredibly valuable hidden on the moon's surface. Chris's book explores something that the world's big powers are once again lining up for,

a piece of lunar real estate. A Chinese rocket is on its way to the moon.

India's Vikram lunar lander launched more than a month ago and has spent the week since circling the Earth in ever larger orbits.

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