Size Duel deck / Ships, aircraft and spacecraft
Solar Orbiter
Mass: launch mass, with fuel
about 1.8 t (3,968 lb)
A European probe that studies the Sun from close by.
Sources and checks
Checked 2026-10-21: Researched by Codex (two independent publishers, verbatim quotes); the server could not read at least one counted page (blocked or PDF), where Codex’s own check found the quote; reviewed by Claude (AI build agent). Quotes are short passages from each source.
“1800 kg”World Meteorological Organization: source, retrieved 2026-10-21; quote re-found by the server check
“1,800 kg”CNES: source, retrieved 2026-10-21; server could not read the page; quote found by Codex
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