Yes, my son devoured Rey’s book at that age.
The other one- The Stars: A New… he read around 9 or 10 at the oldest. It’s not an adults book.
Also, the Wonders of Creation Astronomy and Exploring Creation with Astronomy I just handed to him and he read at his leisure before 10. So there’s some other options.
Also, if you don’t know the Rey’s story of fleeing Paris in 1940, it is good to research and a good one to share with young ones.