Keith Cooper
Science writer
Keith Cooper is a freelance science journalist. His latest book, Amazing Worlds of Science Fiction and Science Fact, is published by Reaktion Books
Recent articles by Keith Cooper
How many neighbours did planet Earth lose? We may have lost planet 9 and trillions of comets from our Solar System
Some of Earth’s original neighbours were flung out into deep space
Earth is in the minority. There may be more 'starship' planets wandering space than planets orbiting suns – and they could have life
There are a staggering number of planets wandering the Galaxy, not tied to any star
