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.
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The November 1, 2026 puzzle ran from the Perseverance rover at 3 m to Earth at 12,742 km — 6 orders of magnitude apart, drawing on space. The pair furthest apart was round 1: Earth is 3.2× as big as Australia.
ROUND 1
How wide is Earth compared with Australia?
Reveal the answer
Answer: Earth — 12,742 km. Earth measures 12,742 km (length / span), which is 3.2× as big as the reference, Australia at 4,000 km.
Earth is about 12,742 kilometres across.
Common miss: players tend to compress Earth when it sits beside Australia — big things get squeezed, small familiar things get stretched.
How tall is a Starship launch stack compared with a Saturn V rocket?
Reveal the answer
Answer: Starship Launch Stack — 121 m. A Starship launch stack measures 121 m (height), which is 1.1× as big as the reference, a Saturn V rocket at 110.6 m.
The complete Starship launch stack is about 121 metres tall.
Common miss: players tend to compress a Starship launch stack when it sits beside a Saturn V rocket — big things get squeezed, small familiar things get stretched.
How long is the Perseverance rover compared with a concert grand piano?
Reveal the answer
Answer: Perseverance Rover — 3 m. The Perseverance rover measures 3 m (length / span), which is 1.1× as big as the reference, a concert grand piano at 2.7 m.
Perseverance is about the length of a small car.
Common miss: players tend to compress the Perseverance rover when it sits beside a concert grand piano — big things get squeezed, small familiar things get stretched.
How long is a Space Shuttle orbiter compared with a Boeing 747?
Reveal the answer
Answer: Space Shuttle Orbiter — 37.3 m. A Space Shuttle orbiter measures 37.3 m (length / span), which is about 1.9× smaller than the reference, a Boeing 747 at 70.7 m.
The orbiter alone is about as long as a short-haul airliner — the launch stack was far taller.
Common miss: players tend to inflate a Space Shuttle orbiter when it sits beside a Boeing 747 — big things get squeezed, small familiar things get stretched.
How long is the International Space Station compared with an American football field?
Reveal the answer
Answer: International Space Station — 109 m. The International Space Station measures 109 m (length / span), which is almost exactly the same size as the reference, an American football field at 109.7 m.
The ISS spans roughly 109 metres across its solar arrays.
Common miss: players tend to inflate the International Space Station when it sits beside an American football field — 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.