Since starting his rock collection aged four, Tim Gregory has been fascinated by science and the natural world. Following an undergraduate degree in geology with planetary science, a PhD in cosmochemistry, and then a position as a research scientist at the University of Bristol and the British Geological Survey (Nottingham), Tim wrote his first book: Meteorite. Specifically, Tim researched the coming together of our Solar System 4.6-billion years ago using stones that fall from the sky: meteorites. He is now a full-time nuclear chemist at the National Nuclear Laboratory where he counts atoms for a living. When he is not in the lab or writing, Tim is usually either hiking, fell running, writing, or playing his guitar. Meteorite is his first book. You can get in touch with him via Goodreads or his personal website.