Greg Chivers is a factual television producer. For most of the last twenty years he's been making documentaries about science and history for US cable TV networks. His show 'What on Earth?' is now firmly established as the most successful series of all time on the Science Channel, while 'NASA's Unexplained Files' made global news headlines and became a viral phenomenon, with the first YouTube clip getting a million hits within two hours. He is a graduate of the Curtis Brown creative writing course and the Faber Academy. His first book, The Crying Machine, was published by Harper in 2019.