Climb Aboard! Explore the beginning of the universe, the big bang theory, galaxies, and black holes! Learn about key astronomers and their contributions to space exploration! Examine the Hubble Space Telescope and the Large Hadron Collider! See an infographic showing a timeline of the universe! Did You Know? facts and a Guidebook of black holes complete your journey. Aligned to Common Core standards and correlated to state standards. Checkerboard Library is an imprint of Abdo Publishing, a division of ABDO.