To learn more about the facts in this mystery, find these books at your local library or bookstore:

Books About the International Space Station

The International Space Station by Allan Morey (Epic, 2018)

Life in Space by Ben Richmond (Sterling, 2018)

My Journey to the Stars by Scott Kelly (Crown, 2017)

Almost Astronauts: 13 Women Who Dared to Dream by Tanya Lee Stone (Candlewick, 2009)

Ask the Astronaut: A Galaxy of Astonishing Answers to Your Questions on Spaceflight by Tom Jones (Smithsonian, 2016)

Astronaut in Training by Kathryn Clay (Capstone, 2017)

Go Wild: Be a Tracker by Chris Oxlade (Hungry Tomato, 2015)

Tracks Count: A Guide to Counting Animal Prints by Steve Engel (Craigmore Creations, 2014)

Awesome Snake Science! by Cindy Blobaum (Chicago Review, 2012)

Copperheads by Melanie A. Howard (Capstone, 2012)

Rattlesnakes by Heather L. Montgomery (Capstone, 2011)

Snakes by Valerie Bodden (Creative Company, 2009)

Crazy About Cats by Owen Davey (Flying Eye, 2017)

Florida Panthers by William Caper (Bearport, 2007)

Mountain Lions by Christine Zuchora-Walske (Capstone, 2012)

Pumas by Charlotte Guillain (Raintree, 2014)

Protists: Algae, Amoebas, Plankton, and Other Protists by Rona Arato (Crabtree, 2010)

Renewable Energy: Discover the Fuel of the Future by Joshua Sneideman and Erin Twamley (Nomad, 2016)