Astrotwins : project blastoff
"Young Mark Kelly and his brother and friends decide to build a rocket over the summer when their constant bickering starts to annoy their grandfather in this middle-grade novel based on the NASA astronauts' real childhoods"-- Provided by publisher. Includes facts about NASA and the space program
Print Book, English, 2015
Simon & Schuster Books for Young Readers, New York, 2015