Ian McMillan and guests delight in the writing and naming of planets (Ian loves Neptune best), exploring how we as writers influence the perception of them, and how our perception may influence how humans treat them.

Bettany Hughes is a historian, author and broadcaster. She shares her passion for Venus (planet and goddess) and looks at the first poem where the moon is depicted as 'silvery'. Bettany is exploring the big questions of the universe in films called 'Tea with B', and in her interview with author Ben Okri describes poetry as 'The Mothership'.

Two of the earth's most exciting sound poets - Hannah Silva and Tomomi Adachi tell Ian how they created sound poetry for Pluto, and explored its ambiguous status (it is not officially a planet any more). They also perform a spontaneous sound poem, especially for The Verb, celebrating the vast number of icy bodies with fascinating names in the Kuiper Belt.

JO Morgan's collection 'The Martian's Regress' is a remarkable thought experiment - imagining humans leaving Earth for Mars, and then returning here in thousands of years’ time, only to be disappointed by our solitary moon. In poems which explore what it means to 'subjugate' a planet to make it support life, Morgan also considers the role of myth and story in building our relationship with a planet.

Kate Greene almost lived on Mars. She was one of a team selected by Nasa to take part in an experiment in Hawaii, where she lived in a geodesic dome for four months in order to simulate what it would be like on Mars. A journalist, author and poet, Kate found herself thinking differently, and considering the relationship of the body to the Earth. Her account of the experience can be found in her book 'Once Upon a Time I Lived on Mars'.