Answer the following question: Ad Astra is the quarterly magazine of the National Space Society (NSS). The name literally means To the Stars. The magazine came into being following the merger of the L5 Society and the National Space Institute which became the NSS in 1987. Since 2008 the magazine is published by MM Publishing.Imaginova Corporation publisher of Space.com published Ad Astra from 2005 to 2008 and still maintains a website for Ad Astra Online at Space.com replacing the previous publisher. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Answer:
Written Work