This is a National Geographic magazine, specifically the August 1990 issue, Volume 178, Number 2. This edition is a valuable piece for collectors of historical magazines, offering a detailed look into various global topics and scientific explorations of the era. The magazine features a special double supplement focusing on The Solar System, alongside in-depth articles on Yugoslavia: A House Much Divided, Neptune: Voyager's Last Picture Show, Voyage of the Century, A Celebration of African-American Life, Northwest Passage, and Missouri's Garden of Consequence.

This listing includes the main magazine as pictured. It provides a fascinating snapshot of world events and scientific discoveries from the late 20th century, making it an excellent addition to any collection of vintage National Geographic publications or for those interested in the specific historical and scientific themes covered.