The five space objects from the Size It Up puzzle on October 12, 2026, with the measured size of each, the reference it was compared against, a source you can check, and how the community's guesses landed. Want the surprise first? Replay this puzzle — archived days never touch your streak.
The October 12, 2026 puzzle ran from the Perseverance rover at 3 m to Jupiter at 139,820 km — 7 orders of magnitude apart, drawing on space. The pair furthest apart was round 5: Earth is 3.7× as big as the Moon.
ROUND 1
How wide is Jupiter compared with Saturn?
Answer: Jupiter — 139,820 km. Jupiter measures 139,820 km (length / span), which is 1.2× as big as the reference, Saturn at 116,460 km.
Jupiter is almost eleven times wider than Earth.
Common miss: players tend to compress Jupiter when it sits beside Saturn — big things get squeezed, small familiar things get stretched.
How long is the International Space Station compared with a Boeing 747?
Answer: International Space Station — 109 m. The International Space Station measures 109 m (length / span), which is 1.5× as big as the reference, a Boeing 747 at 70.7 m.
The ISS spans roughly 109 metres across its solar arrays.
Common miss: players tend to compress the International Space Station when it sits beside a Boeing 747 — big things get squeezed, small familiar things get stretched.
How long is the Perseverance rover compared with an adult horse?
Answer: Perseverance Rover — 3 m. The Perseverance rover measures 3 m (length / span), which is 1.3× as big as the reference, an adult horse at 2.4 m.
Perseverance is about the length of a small car.
Common miss: players tend to compress the Perseverance rover when it sits beside an adult horse — big things get squeezed, small familiar things get stretched.
Sizes are measured along the axis named in each round and link to their published source. Explore the full library by category, or read how scoring works.
Size It Up Answers Oct 12, 2026 (#21): Trombone, Giant Centipede & More