Six untimed questions, starting with this one.
Check an answer here
Check this question’s accepted set without submitting to a game or opening the full answer list.
Only your submitted spelling will be checked. Other answers stay hidden.
Give me a hint — no answer revealed
Start with the full category, then apply the exact boundary: The eight planets in NASA’s October 2026 reference set. Excludes dwarf planets and quasi-satellites. You only need one qualifying answer. A longer name is not automatically rarer.
Reveal a verified practice pick
This pick belongs to the selected question’s answer set. Points are a fixed knowledge rating.
Reveal a fast high-scoring answer
Shortest accepted input at 65+ points
VenusVenus · 80 points · 5 characters
Venus has no natural moons in NASA’s solar-system overview.
Highest fixed score
Venus80 points · Shortest accepted spelling: Venus
These are editorial points, separate from real player choice counts.
Reveal all 2 practice answers
Filter by a name or listed alias. Scores are fixed knowledge ratings.
2 accepted answers
No answers match these filters. Try another spelling or a lower minimum score.
Rule examples & common mix-ups — may reveal answers
- The eight planets and dwarf planets are separate sets. A moon belongs to neither planet set; apply any size, position or name-length condition as well.
These notes explain the question boundary; they are not a ranking of player mistakes.
Why these answers qualify
Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.
Source: NASA · Our solar system ↗
Reference version: 2026-10-02. See our answer policy for how we handle aliases and omissions.