Plant Planet [AstroNuts Volume: #1]by Scieszka, Jon 

BTSB Prebound(Chronicle Books, 2019)

BTSB #: 792321 Available

Dewey: FAges: 8-12   
AR: 4.4 MG Lexile: 650

Genres: Humorous Fiction Science Fiction Adventure Fiction

Subjects: Life on other planets - Fiction Extrasolar planets - Fiction Astronauts - Fiction Genetic engineering - Fiction Science fiction Humorous fiction

Summary: Carbon dioxide is out of control on Earth, and the fate of humankind rests in the paws of four experimental, untested Animal Astronauts (AlphaWolf, SmartHawk, LaserShark, and StinkBug) who are seeking another habitable planet; first destination is the Plant Planet which at first looks perfect, except that the abundant plant life can think for itself--and it thinks that it really does not like the AstroNuts.

Water planet [AstroNuts Volume: #2]by Scieszka, Jon 

BTSB Prebound(Chronicle Books, 2020)

BTSB #: 792261 Available

Dewey: FAges: 8-12   
AR: 4.3 MG Lexile: 630 F&P: R

Genres: Humorous Fiction Science Fiction Adventure Fiction

Subjects: Life on other planets - Fiction Extrasolar planets - Fiction Astronauts - Fiction Genetic engineering - Fiction Pollution - Fiction Science fiction Humorous fiction

Summary: On their second mission to find another habitable planet, the four mutant animals, LaserShark, AstroWolf, SmartHawk, and StinkBug, splash land on the Water Planet, run by some suspiciously friendly clams, who are very eager to swap planets--and if the AstroNuts can stop arguing among themselves they may find out why before it is too late.

XO, Exoplanet by Underwood, Deborah 

BTSB Prebound(Little, Brown, 2021)

BTSB #: 898579 In Bindery

Dewey: EAges: 4-8   
AR: 2.2 LG F&P: O

Genres: Humorous Fiction

Subjects: Extrasolar planets - Fiction Planets - Fiction Letters - Fiction Solar system - Fiction

Summary: When Jupiter notices a planet circling a far star, he enlists the other planets in our solar system to send a letter, but soon there is a disagreement on which, exactly, is the exoplanet.