Filed from 3 published puzzles

DOCKS

Set to 3 different clues across 3 published puzzles, most often “Joins in space” — The New York Times, Friday, 12 January 2007.

5 letters

Every clue on record, most used first

Joins in spaceonce
The New York Times — Friday, 12 January 2007
Loading areasonce
The New York Times — Wednesday, 20 August 2003
Links with a space stationonce
The New York Times — Monday, 8 September 1997