Hannu Rajaniemi was born in Finland. At the age of eight he approached the European Space Agency with a fusion-powered spaceship design, which was received with a polite "thank you" note. Hannu studied mathematics and theoretical physics at University of Oulu and Cambridge and holds a PhD in string theory from the University of Edinburgh. He co-founded a mathematics consultancy whose clients included UK Ministry of Defence and the European Space Agency. Hannu is the author of four novels including The Quantum Thief (winner of 2012 Tähtivaeltaja Award for the best science fiction novel published in Finland and translated into more than 20 languages). His most recent book is Summerland (June 2018), an alternate history spy thriller in a world where the afterlife is real. His other works include Invisible Planets: Collected Fiction, a short story collection. Hannu lives in the San Francisco Bay Area. He is a co-founder and CEO of HelixNano, a venture- and Y Combinator backed biotech startup.
Rupert Degas has narrated over a hundred audiobooks. He has recorded a diverse range of authors, from Andy McNab, James Patterson, Wilbur Smith and Chris Ryan to children's authors such as Derek Landy, Darren Shan, Jamie Rix and Philip Pullman. He has narrated books by Patrick Rothfuss, Haruki Murakami, Mervyn Peake, Rose Tremain and Cormac McCarthy as well as recording classics from Kafka, Conan-Doyle, Lovecraft and Wilde. Rupert has lent his voice to numerous cartoons, including Mr Bean, Robotboy, Gumball, Thomas & Friends and Bob the Builder and has performed in over fifty radio productions for BBC Radio 4, including The Brightonomicon and The Hitchhiker's Guide to the Galaxy. He spent eighteen months in the West End performing in Stones in his Pockets and was in the original London cast of the smash-hit comedy The 39 Steps.