My titles Earthquake! and Volcano! help beginning readers make sense of these natural disasters here on Earth. But readers will likely also be intrigued to discover that Earth is not the only place where these events take place: both quakes and volcanoes happen in outer space as well! You can learn more about them at NASA’s “Space Volcanoes!” and “What Is an Earthquake?” pages. Of course, a quake in space needs a different name: marsquakes, anyone?