Collins Big Cat supports every primary child on their reading journey from phonics to fluency. Top authors and illustrators have created fiction and non-fiction books that children love to read. Book banded for guided and independent reading, there are reading notes in the back, comprehensive teaching and assessment support and ebooks available.We know a lot about space but what do we not yet know? Scientists have predicted a ninth planet in the solar system but can they prove that it’s really out there? Discover more fascinating space mysteries in this information book by Isabel Thomas.Lime Plus/Band 11+ books provide challenging plots and vocabulary as well as opportunities to practise inference, prediction and reading stamina.Pages 46 and 47 allow children to re-visit the content of the book, supporting comprehension skills, vocabulary development and recall.Ideas for reading in the back of the book provide practical support and stimulating activities.