‘Accompanied by NASA photographs and Dorros’s colorful, lively drawings, the text explains the Earth’s rotation in clear and simple terms. An experiment u

Day follows night. Night comes after day. What makes this cycle of days and nights happen? Through beautiful photos and spare text, beginning readers will learn

Moonlight is really sunlight! Did you know that the moon doesn't make its own light? Instead, it receives light from the sun and reflects it to us on the Earth.

What makes the sun rise and set? Our planet is spinning in a universe of sun, moon, and stars. See how a day unfolds in one family's backyard in this story of E

"Sleep is one of the most important but least understood aspects of our life, wellness, and longevity ... An explosion of scientific discoveries in the last twe