PHOBOS
6 letters
Historical clue formulations
- Moon that orbits Mars about three times each Martian day — 2023-09-08
- Larger of Mars's two moons — 2018-05-06
- Moon of Mars — 2016-04-19
- Moon of Mars — 2013-12-20
- Orbiter of Mars — 2012-06-19
- Moon of Mars — 2008-08-23
- Moon of Mars — 2004-12-15
