DAILY NO. 32 · VERIFIED MEASUREMENTS

Size It Up answers today – October 23, 2026

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.

Show today's overview (spoilers)

The October 23, 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 1: Mars is 1.6× as big as Brazil.

ROUND 1

How wide is Mars compared with Brazil?

Reveal the answer

Answer: Mars — 6,779 km. Mars measures 6,779 km (length / span), which is 1.6× as big as the reference, Brazil at 4,320 km.

Mars is a little over half Earth’s diameter.

Common miss: players tend to compress Mars when it sits beside Brazil — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 2

How long is a Space Shuttle orbiter compared with an Argentinosaurus?

Reveal the answer

Answer: Space Shuttle Orbiter — 37.3 m. A Space Shuttle orbiter measures 37.3 m (length / span), which is 1.1× as big as the reference, an Argentinosaurus at 33 m.

The orbiter alone is about as long as a short-haul airliner — the launch stack was far taller.

Common miss: players tend to compress a Space Shuttle orbiter when it sits beside an Argentinosaurus — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 3

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.

Source ↗
ROUND 4

How long is the Hubble Space Telescope compared with a Tyrannosaurus rex?

Reveal the answer

Answer: Hubble Space Telescope — 13.1 m. The Hubble Space Telescope measures 13.1 m (length / span), which is 1.1× as big as the reference, a Tyrannosaurus rex at 12.3 m.

Hubble is roughly the size of a school bus, which is exactly what the Shuttle’s cargo bay was built to hold.

Common miss: players tend to compress the Hubble Space Telescope when it sits beside a Tyrannosaurus rex — big things get squeezed, small familiar things get stretched.

Source ↗
ROUND 5

How wide is Jupiter compared with Saturn?

Reveal the answer

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.

Source ↗

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.