In February 1984, U.S. astronaut Bruce McCandless II became the first person to spacewalk without being tethered to a craft. Wearing a jet pack or MMU (Manned Maneuvering Unit), he flew more than 300 feet, about the length of a football field, from the space shuttle Challenger.
Kids Discover For over 25 years, we’ve been creating beautifully crafted nonfiction products for kids. With a specialty in science and social studies, our team of talented writers, award-winning designers and illustrators, and subject-experts from leading institutions is committed to a single mission: to get children excited about reading and learning.