DAILY NO. 40 · VERIFIED MEASUREMENTS
Today's five space Size It Up comparisons with the measured size of each object, its reference and a source you can check. The puzzle is still live, so every answer stays hidden until you tap it. Haven't played yet? Play today's puzzle first.
The October 31, 2026 puzzle ran from the Perseverance rover at 3 m to Saturn at 116,460 km — 7 orders of magnitude apart, drawing on space. The pair furthest apart was round 5: the Apollo Lunar Module is 3.4× as big as a US interior door.
Answer: Earth — 12,742 km. Earth measures 12,742 km (length / span), which is 2.8× as big as the reference, the contiguous United States at 4,500 km.
Earth is about 12,742 kilometres across.
Common miss: players tend to compress Earth when it sits beside the contiguous United States — big things get squeezed, small familiar things get stretched.
Answer: Perseverance Rover — 3 m. The Perseverance rover measures 3 m (length / span), which is 1.5× as big as the reference, a queen bed at 2 m.
Perseverance is about the length of a small car.
Common miss: players tend to compress the Perseverance rover when it sits beside a queen bed — big things get squeezed, small familiar things get stretched.
Answer: Mars — 6,779 km. Mars measures 6,779 km (length / span), which is about 1.9× smaller than the reference, Earth at 12,742 km.
Mars is a little over half Earth’s diameter.
Common miss: players tend to inflate Mars when it sits beside Earth — big things get squeezed, small familiar things get stretched.
Answer: Saturn — 116,460 km. Saturn measures 116,460 km (length / span), which is about 1.2× smaller than the reference, Jupiter at 139,820 km.
Saturn is more than nine times wider than Earth.
Common miss: players tend to inflate Saturn when it sits beside Jupiter — big things get squeezed, small familiar things get stretched.
Answer: Apollo Lunar Module — 6.9 m. The Apollo Lunar Module measures 6.9 m (height), which is 3.4× as big as the reference, a US interior door at 2 m.
It stood about as tall as a two-storey house, and only the top half ever came back.
Common miss: players tend to compress the Apollo Lunar Module when it sits beside a US interior door — 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.