Take a journey through the planets and stars, starting from our own little corner of the universe and venturing far beyond. Learn about galaxies, constellations, black holes, exoplanets, and space travel itself. Out of this world! Wire-o bound hardcover 6-3/8 wide x 8-1/2 high (16.2 cm wide x 21.6 cm high) 64 pages (20 scratch-off, 20 illustrated, 20 sketch pages) Shrink-wrapped with a wooden stylus. White outlines on black scratch-off pages create a fun way for younger children (ages 5 and up) to trace illustrations, revealing magnificent colors beneath. Non-toxic. Potential eye irritant. Avoid inhaling particles of scratch coating. Not for children under 5 years. Meets all applicable safety standards.