Alok Jha is science and environment correspondent at the Guardian. In addition to writing news and comment, he presents the Science Weekly podcast and runs the Guardian's science website. Alok's first book is How to Live Forever and 34 Other Really Interesting Uses of Science.

First broadcast on 11th March 2011.

George Orwell wrote some of his most renowned essays for the British left-wing publication Tribune between 1940 and 1947, including "Books vs Cigarettes", "You And The Atom Bomb" and the regular "As I Please" column. These works were compiled by Paul Anderson in the book "Orwell in Tribune."

Paul Anderson is a former editor of Tribune and deputy editor of the New Statesman. He talked to Little Atoms about Orwell's life and legacy.

Interview first broadcast on 18th August 2006.

Simon Ardizzone is a freelance editor and filmmaker living and working in the UK. Since graduating from the National Film and Television School in 1995, Simon has worked on over 50 films for English and American broadcasters. Hacking Democracy, his first documentary, co-produced and directed with Russell Michaels, was nominated for Outstanding Investigative Journalism at this year's Emmy Awards. Hacking Democracy which proved that vote-counting computers could reverse the results of an American election, was shown last year by HBO to widespread critical acclaim and has become a tool for election reform activists across the states.

Interview first broadcast on 7th December 2007.

The 1st October 2009 saw the launch of The Atheist Guide to Christmas. This episode of Little Atoms features Neil and Padraig in conversation with 3 old friends of the show, editor Ariane Sherine, and contributors Natalie Haynes and Josie Long. We discuss the genesis (!) of the book, our contributions, the ideal christmas, and argue over the definitions of atheism, agnosticism and secularism, then the rubbishness of various ex-boyfriends gift buying skills are discussed.

Edited by Ariane Sherine, The Atheist's Guide To Christmas features 42 contributions from the world's most entertaining atheist scientists, comedians, philosophers, writers and journalists, including: Richard Dawkins, Derren Brown, Charlie Brooker, David Baddiel, Ben Goldacre, Josie Long, Richard Herring, Simon Singh, Brian Cox, Jenny Colgan, AC Grayling, Simon Le Bon, Claire Rayner, Robin Ince, Natalie Haynes, Zoe Margolis, Phil Plait, Mitch Benn, Lucy Porter, Adam Rutherford... and many, many more (Including Little Atoms own Neil Denny).

First broadcast on 25th September 2009.