Historical clue formulations

• Old NASA landers — 2011-06-12
• NASA's Falcon and Intrepid — 2010-04-03
• Moon-landing vehicles, for short — 2010-01-04
• Some touchdown makers, briefly — 2009-11-21
• The Eagle and others — 2006-06-10
• NASA craft — 2006-04-22
• NASA craft — 2005-12-11
• Apollo vehicles — 1999-12-01
• Moon vehicles — 1998-08-03
• NASA vehicles — 1997-02-15
• Vehicles for Apollo — 1996-12-21
• Moon vehicles, for short — 1996-10-30
• Apollo craft — 1994-12-21
• Golf-cartlike vehicles — 1994-07-23