QUASAR
Set to 4 different clues across 4 published puzzles, most often “Distant energy source” — The New York Times, Friday, 27 September 2002.
6 letters
Every clue on record, most used first
- Distant energy sourceonce
The New York Times — Friday, 27 September 2002
- Astronomical discovery of the 1960'sonce
The New York Times — Sunday, 23 January 2000
- Astronomical object with a large red shiftonce
The New York Times — Monday, 21 September 1998
- Radio-wave emitteronce
The New York Times — Saturday, 30 July 1994