ALL ANSWERS · SPACE · DAILY No. 34 · OCTOBER 7, 2026

Size It Up Space answer: October 7

The five Space silhouettes for October 7, 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 34 ran from Pan (28 km) to Kepler-22 (1,209,000 km). The widest gap was round 4, Mercury against Dione, at 4.3×; the closest call was round 3, Pandora against Prometheus, only 1.1× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Pan (Saturn’s moon · mean diameter) vs Atlas (Saturn’s moon · mean diameter)

    Atlas · reference · 30.2 km
    Pan · true diameter · 28 km

    1.1× shorter than Atlas

    Pan, a moon of Saturn, has a mean diameter of about 28 km. This is the body’s size, not an orbital distance.

  2. ROUND 2

    Kepler-22 (estimated stellar diameter) vs GJ 436 (estimated stellar diameter)

    GJ 436 · reference · 633,100 km
    Kepler-22 · true diameter · 1,209,000 km

    1.9× wider than GJ 436

    Kepler-22 has an estimated stellar diameter of about 1,209,126.6 km. This is the body’s size, not an orbital distance.

  3. ROUND 3

    Pandora (Saturn’s moon · mean diameter) vs Prometheus (Saturn’s moon · mean diameter)

    Prometheus · reference · 86.2 km
    Pandora · true diameter · 81.2 km

    1.1× shorter than Prometheus

    Pandora, a moon of Saturn, has a mean diameter of about 81.2 km. This is the body’s size, not an orbital distance.

  4. ROUND 4

    Mercury (mean diameter) vs Dione (Saturn’s moon · mean diameter)

    Dione · reference · 1,123 km
    Mercury · true diameter · 4,879 km

    4.3× wider than Dione

    Mercury has a mean diameter of about 4,878.8 km. This is the body’s size, not an orbital distance.

  5. ROUND 5

    TRAPPIST-1 (estimated stellar diameter) vs LHS 1140 (estimated stellar diameter)

    LHS 1140 · reference · 300,400 km
    TRAPPIST-1 · true diameter · 165,900 km

    1.8× shorter than LHS 1140

    TRAPPIST-1 has an estimated stellar diameter of about 165,854.9 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.

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