A non-fiction introduction to the massive scale of the known universe--

"With her parents off traveling the globe, Lenora is bored, bored, bored -- until she discovers a secret doorway into the ultimate library. Mazelike and reality-bending, the library contains all the universe's wisdom. Every book ever written, and every fact ever known, can be found within its walls. And Lenora becomes its newly appointed Fourth Assistant Apprentice Librarian. She rockets to the stars, travels to a future filled with robots, and faces...

America's most celebrated astrophysicist invites young readers to explore the mysteries of the universe.

From the #1 bestselling science author for kids comes a hilarious new take on the universe and everything in it. Using the familiar rhythm of There Was an Old Lady Who Swallowed a Fly, follow along as the black hole swallows up everything that exists, from the biggest to the smallest pieces of matter. The silly, vibrant artwork is sure to make stargazers of all ages smile. Included in the book will be instructions for revealing secret, invisible text...

In this cumulative, rhyming story, a young boy takes a nighttime ride from the distant stars in the Milky Way galaxy to his cozy bed, as his blanket becomes a rocket, a plane, and a skateboard.

This documentary series explores how humans discovered the laws of nature and found the coordinates in space and time.

An introduction to the expansion of the universe and astrophysics that discusses matter, energy, the history of astronomy, evolution of theories in astrophysics, the big bang, and other topics.

In order to heal after his mother's death, thirteen-year-old Sal learns to reach into time and space to retrieve things--and people--from other universes.