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: 0.2 x 7.9 x 7.8 IN
Publication Date: January 17, 2022