DAILY NO. 13 · VERIFIED MEASUREMENTS
The five space objects from the Size It Up puzzle on September 13, 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.
Answer: 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.
Answer: 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.
Answer: the Moon measures 3,474.8 km (length / span), which is about 1.2× smaller than the reference, Australia at 4,000 km.
The Moon’s mean diameter is about 3,475 kilometres.
Common miss: players tend to inflate the Moon when it sits beside Australia — big things get squeezed, small familiar things get stretched.
Answer: 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: 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.
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.