Historical clue formulations

• This puzzle's theme — 2025-08-03
• Space program — 2020-02-09
• *Film words before "Nemesis," "Into Darkness" and "Beyond" — 2016-07-26
• Sci-fi blockbuster of 2009 — 2011-07-19
• 1960s TV series with numerous spinoffs — 2008-09-09
• 1979 film with sequels II to VI — 2008-02-02
• Successful film franchise starting in 1979 — 2005-12-18
• TV show with the most spinoffs, according to the Guinness Book — 2005-05-07
• TV series with Klingons and Romulans — 2005-01-31
• Space program — 2003-07-18
• Popular movie series — 2000-05-12
• Noted TV debut of 9/8/66 — 1999-11-27
• Raison d'être of many annual conventions — 1999-10-08
• Captain Picard series — 1997-01-06