Historical clue formulations

• *4th — 2026-08-25
• Destination for 2025's ESCAPADE satellites — 2026-06-11
• Milky Way maker … or Milky Way object — 2025-11-13
• Planet whose name is also a candy company — 2025-09-30
• 2004 landing site for Spirit — 2025-08-03
• Planet whose evening temperatures plunge to -200°F — 2025-07-22
• Destination for NASA's Perseverance rover — 2023-05-02
• See 14-Across — 2022-08-31
• Locale of the Perseverance rover — 2022-02-07
• What two Vikings have explored — 2021-05-23
• Land of Opportunity? — 2020-09-24
• Destination of the rover Perseverance — 2020-08-10
• Damage — 2019-10-31
• What areology is the study of — 2019-07-05
• Counterpart of Venus — 2018-10-07
• Neighbor of the asteroid belt — 2018-01-23
• Mount Olympus, at 72,000 feet, is its highest peak — 2017-12-06
• Milky Way maker — 2017-06-10
• Opportunity's on it — 2017-05-05
• Where Matt Damon was stranded in a 2015 film — 2017-02-22
• Chocolate treat since 1932 — 2016-01-21
• Curiosity's locale — 2015-11-27
• Where Spirit landed in 2004 — 2015-11-06
• Twix maker — 2015-03-11
• Target of NASA's Rover mission — 2014-01-14
• Setting of the 2012 film "John Carter" — 2013-09-29
• Roman 18-Across — 2013-06-21
• Fourth rock from the sun — 2012-07-30
• Maker of 31-Across — 2011-10-06
• "The Sands of ___" (Arthur C. Clarke's first science fiction novel) — 2011-09-03
• Milky Way maker — 2011-08-17
• Viking's destination — 2011-03-13
• Rover's home — 2010-05-22
• Phoenix landing site, 2008 — 2009-11-11
• Location of Olympus Mons — 2008-08-05
• Home of the invaders in Wells's "The War of the Worlds" — 2007-12-03
• Viking landing site — 2007-06-03
• Deimos orbits it — 2005-11-02
• Neighbor of Earth — 2005-07-05
• ___ rover — 2005-04-15
• Snickers alternative — 2004-12-29
• Land of Opportunity? — 2004-11-06
• Twix candy maker — 2003-08-10
• Maker of Twix and Starburst — 2002-10-06
• Pathfinder explored it — 2002-09-25
• Viking's destination — 2002-03-08
• "Invaders From ___" (1953 sci-fi) — 2002-02-20
• Pathfinder's target — 2001-11-25
• Sci-fi setting — 2001-10-31
• Phobos orbits it — 2000-11-07