by David Armentrout (Author), Patricia Armentrout (Author)
True planets, dwarf planets, and exoplanets--what's the difference? Learn the three rules scientists use to decide what makes something a planet. Discover how the search continues outside our solar system to find a planet like Earth.
Number of Pages: 24
Dimensions: 0.3 x 8.1 x 8.1 IN
Illustrated: Yes
Publication Date: January 17, 2022