ALL ANSWERS · SPACE · DAILY No. 53 · OCTOBER 26, 2026
Size It Up Space answer: October 26
The five Space silhouettes for October 26, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 53 ran from Hyperion (270 km) to GJ 436 b (53,190 km). The widest gap was round 1, Europa against TRAPPIST-1 g, at 4.6×; the closest call was round 4, TRAPPIST-1 c against LHS 1140 b, only 1.6× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
You have not finished today’s puzzle on this device. The answers below are blurred so you can still play first.
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ROUND 1
Europa (Jupiter’s moon · mean diameter) vs TRAPPIST-1 g (estimated planetary diameter)
TRAPPIST-1 g · reference · 14,400 km Europa · true diameter · 3,122 km 4.6× shorter than TRAPPIST-1 g
Europa, a moon of Jupiter, has a mean diameter of about 3,121.6 km. This is the body’s size, not an orbital distance.
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ROUND 2
LHS 3844 b (estimated planetary diameter) vs GJ 436 b (estimated planetary diameter)
GJ 436 b · reference · 53,190 km LHS 3844 b · true diameter · 16,400 km 3.2× shorter than GJ 436 b
LHS 3844 b has an estimated planetary diameter of about 16,404.5 km. This is the body’s size, not an orbital distance.
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ROUND 3
GJ 1214 b (estimated planetary diameter) vs Earth (mean diameter)
Earth · reference · 12,740 km GJ 1214 b · true diameter · 34,860 km 2.7× wider than Earth
GJ 1214 b has an estimated planetary diameter of about 34,862.7 km. This is the body’s size, not an orbital distance.
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ROUND 4
TRAPPIST-1 c (estimated planetary diameter) vs LHS 1140 b (estimated planetary diameter)
LHS 1140 b · reference · 22,070 km TRAPPIST-1 c · true diameter · 13,990 km 1.6× shorter than LHS 1140 b
TRAPPIST-1 c has an estimated planetary diameter of about 13,993.6 km. This is the body’s size, not an orbital distance.
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ROUND 5
Dione (Saturn’s moon · mean diameter) vs Hyperion (Saturn’s moon · mean diameter)
Hyperion · reference · 270 km Dione · true diameter · 1,123 km 4.2× wider than Hyperion
Dione, a moon of Saturn, has a mean diameter of about 1,122.8 km. This is the body’s size, not an orbital distance.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.