ALL ANSWERS · SPACE · DAILY No. 24 · SEPTEMBER 27, 2026
Size It Up Space answer: September 27
The five Space silhouettes for September 27, 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 24 ran from Deimos (12.4 km) to Kepler-10 (1,482,000 km). The widest gap was round 3, Kepler-10 against GJ 1132, at 4.8×; the closest call was round 1, Thebe against Prometheus, only 1.1× 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.
-
ROUND 1
Thebe (Jupiter’s moon · mean diameter) vs Prometheus (Saturn’s moon · mean diameter)
Prometheus · reference · 86.2 km Thebe · true diameter · 98.6 km 1.1× wider than Prometheus
Thebe, a moon of Jupiter, has a mean diameter of about 98.6 km. This is the body’s size, not an orbital distance.
-
ROUND 2
Phoebe (Saturn’s moon · mean diameter) vs Enceladus (Saturn’s moon · mean diameter)
Enceladus · reference · 504.2 km Phoebe · true diameter · 213 km 2.4× shorter than Enceladus
Phoebe, a moon of Saturn, has a mean diameter of about 213 km. This is the body’s size, not an orbital distance.
-
ROUND 3
Kepler-10 (estimated stellar diameter) vs GJ 1132 (estimated stellar diameter)
GJ 1132 · reference · 307,600 km Kepler-10 · true diameter · 1,482,000 km 4.8× wider than GJ 1132
Kepler-10 has an estimated stellar diameter of about 1,481,841 km. This is the body’s size, not an orbital distance.
-
ROUND 4
Amalthea (Jupiter’s moon · mean diameter) vs Metis (Jupiter’s moon · mean diameter)
Metis · reference · 43 km Amalthea · true diameter · 167 km 3.9× wider than Metis
Amalthea, a moon of Jupiter, has a mean diameter of about 167 km. This is the body’s size, not an orbital distance.
-
ROUND 5
Pan (Saturn’s moon · mean diameter) vs Deimos (Mars’s moon · mean diameter)
Deimos · reference · 12.4 km Pan · true diameter · 28 km 2.3× wider than Deimos
Pan, a moon of Saturn, has a mean diameter of about 28 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.