The Year in Space 2018 Desk Calendar, Spiral Bound 6" x 9", 136 pages, 53 Weekly Astronomy and Space Exploration Images, Daily Moon Phases, Space History, Sky Events, Planning Calendars Over 53 weekly images of astronomy and space exploration Spiral-bound 6" x 9" (12" x 9" when open) calendar - lays flat on desk Hundreds of sky events, space history dates, daily moon phases Planning calendars going all the way out to 2021 Includes monthly sky summary and planetary exploration articles