My first book for Pearson Bug Club: When Will the Sun Go Out? and other strange solar system science (Pearson, 2012).
Great fun to write (the remit: ‘be as funny as possible’) and the insides look gorgeous.
Favourite fact from the book: Anyone who spots a new asteroid is allowed to name it! First you have to make sure that it’s not one of the 200,000 that have already been discovered.