Mars is the closest planet to Earth, but how much do we know about it? Written by science author Steve Parker , this fact-packed book takes a look at the physical features of the planet and at the amazing exploration that has been done on Mars. Publisher: HarperCollins Publishers Author(s): Steve Parker Number of pages: 16 Collection: Collins Big Cat Publication date: 2013 Dimensions: 50 x 33 x 2 Cover type: Paperback / softback