SKYLAB
| Date | Clue |
|---|---|
| 2025-07-09 | 1970s space station |
| 2017-07-07 | NASA project launched in 1973 |
| 2015-08-07 | The orbital workshop was its largest component |
| 2015-05-09 | It burned and crashed in 1979 |
| 2015-03-03 | Space station that crashed in 1979 |
| 2012-09-20 | Crasher of 1979 |
| 2010-06-17 | 1973 NASA launch |
| 2010-04-18 | 1973 NASA launch |
| 2004-06-21 | Bygone space station |
| 2003-07-23 | 1970's space station |
| 2002-07-30 | First U.S. space station |
| 1998-02-24 | 1973 NASA launch |
| 1997-07-16 | First U.S. space station |
| 1995-03-25 | Launch 5/25/73 |
| 1994-09-21 | It fell in 1979 |