NASA Astronaut Group 13 (the Hairballs) was a group of 23 astronauts announced by NASA on 17 January 1990. Place {{NASA Astronaut Group 13}} at the end of an article, but above any categories.Initial visibility: currently defaults to autocollapse To set this template's initial visibility, the |state= parameter may be used: |state=collapsed: {{NASA Astronaut Group 13|state=collapsed}} to show the template collapsed, i.e., hidden apart from its title bar Options. The group name came from its selection of a black cat as a mascot, to play against the traditional unlucky connotations of the number 13.