Professor Stephen Hawking envisioned a world of "superhumans" in his final prediction before he died seven months ago.
The celebrated physicist suggested that genetic engineering would create a new race of humans that could destroy the rest of humanity.
A collection of articles and essays left by Hawking's warning about the dangers of manipulating DNA will now be published in a posthumous book, according to the Daily Mail.
Brief Answers to the Big Questions will share the scientist's fears of a new race and the problems humanity could face if those with wealth are given the opportunity to alter their children's DNA.