Historical clue formulations

• Major research lab for astronauts, for short — 2026-04-05
• Astronauts' outpost, for short — 2024-12-26
• Site used by NASA, in brief — 2022-11-06
• 39-Across successor: Abbr. — 2021-12-01
• Mag. number — 2020-02-17
• Satellite inhabited continuously since 2000: Abbr. — 2019-12-22
• Magazine no. — 2019-02-28
• Magazine no. — 2018-09-25
• Magazine unit: Abbr. — 2017-11-28
• Magazine edition: Abbr. — 2016-03-27
• Vol. 1, No. 1, e.g. — 2015-12-11
• One New Yorker, e.g.: Abbr. — 2015-03-27
• There's one every year for Person of the Year: Abbr. — 2015-03-15
• Periodical output: Abbr. — 2014-06-26
• Limited edition? — 2013-10-25
• Mag. edition — 2010-09-30
• Edition: Abbr. — 2010-01-24
• Magazine no. — 2010-01-10
• Mag. copy — 2009-07-08
• Periodical output: Abbr. — 2009-03-27
• Magazine output: Abbr. — 2009-01-07
• Magazine no. — 2007-08-26
• No. of People, say — 2006-10-15
• Magazine no. — 2006-04-06
• Magazine no. — 2004-04-12
• Magazine: Abbr. — 1998-06-19
• Mag. edition — 1994-10-15