Struggling with grief over her uncle's death, twelve-year-old amateur astronomer Tuesday Beals makes a discovery that could save her favorite astronomy spots in Zion National Park from the threat of a new housing development.

"Engaging images accompany information about Pluto and the dwarf planets. The combination of high-interest subject matter and light text is intended for students in grades 3 through 7"--

"Your best friends are your dog Homer and your cat Zogg. But there's a secret about them that no one knows but you: Zogg and Homer can talk! When your school friend, Janice, invites you to Paris for two weeks, you're not sure if you can leave Homer and Zogg all alone. They had big plans to take you to outer space this summer. Space?! So what will you do? Should you let Squarks and diamond-covered mice teach you about different life-forms in the Universe?...

In 1969 twelve-year-old Mimi and her family move to an all-white town in Vermont, where Mimi's mixed-race background and interest in "boyish" topics like astronomy make her feel like an outsider.

When the baddest of bad guys threatens the world with a giant black hole, Ben Braver is the only one who can stop it. Ready or not, he's about to learn what it really means to be a hero (from back cover).