Book Buzz is a children's book review column. The July Book Buzz is out of this world. This is the 50th anniversary of the Neil Armstrong’s and Buzz Aldrin’s lunar walk, and Book Buzz celebrates by featuring “Moon! Earth’s Best Friend,” “Look Up With Me: Neil DeGrasse Tyson: A Life Among the Stars,” and “When We Walked on the Moon.” Readers will learn or remember so much through these books. (Download site and code: www.mo-nie.com and buzzjul19)