(Hardback, Updated Edition)

"An accessible introduction to black holes: what they are, how they form, and how scientists find them. This expanded edition includes updated facts and a new chapter on the first-ever photograph of a black hole"--

(Paperback, Updated Edition)

Aspiring astronomers can learn what black holes are, what causes them, how scientists first discovered them, and more in this informative science book that includes space paintings, real telescopic images, funny doodles, and speech bubbles. Full color.

(Hardback)

"Supporting the Common Core Standards and Next Generation Science Standards"--Back cover.

(Hardback)

The sun is out in the day and always has a circle shape. The moon's shape seems to change and you can sometimes see it in the daytime and at night. What are the sun and the moon How are they the same and how do they differ