NASA Astronaut Group 13
| The Hairballs | |
|---|---|
| The Astronauts of Group 13 | |
| Year selected | 1990 | 
| Number selected | 23 | 
NASA Astronaut Group 13 (the Hairballs) was a group of 23 astronauts announced by NASA on 17 January 1990. 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.