We publish our audit record because accuracy claims should be checkable. Every entry on this site runs through an automated fact-audit pipeline (accuracy audit → source-grounded repair → visual QA); this page is generated from that pipeline's own report, not written by hand.
Last full accuracy audit: 2026-09-07 · 25 entries checked · 18 flagged · 27 issues confirmed · 0 corrected · 27 still open
Mars Polar Lander — The CD-ROM carried names from the general public, not exclusively children.
Mars Polar Lander — The statement that the lander was originally intended to communicate only through the Mars Climate Orbiter is misleading because it also had a direct-to-Earth communication capability.
Opportunity (rover) — The entry states the rover's official designation as MER-1, but Opportunity was MER-B (MER-1 was Spirit).
Philae (spacecraft) — Philae's landing was not a soft landing due to failed harpoons and thruster, and it bounced multiple times; calling it a 'soft landing' is factually incorrect.
Philae (spacecraft) — Philae entered safe mode on 14 November 2014, not 15 November as stated.
Phoenix (spacecraft) — The 'DID YOU KNOW' section states 'Phoenix was NASA's sixth successful landing on Mars from seven attempts,' which is factually incorrect because NASA had more than seven total Mars landing attempts before Phoenix, and the success rate is not 6 out of 7.
Spirit (rover) — The entry states Spirit had a previous embedding event before May 2009, which is false.
Spirit (rover) — The entry incorrectly equates jarosite with iron(III) sulfate; jarosite is a potassium iron sulfate mineral.
Venera 4 — The claim that the heat shield could withstand temperatures up to 11,000 °C is incorrect; actual heat shield materials for such missions withstand temperatures around 2,000–3,000 °C.
Venera 4 — The claim that the capsule's lock was made of sugar to dissolve in liquid water is not a factual detail from the Venera 4 mission and appears to be invented.
Venera 5 — The entry states the photometer detected a light level of 250 watts per square meter and confirmed carbon dioxide composition, but the photometer does not measure composition; that is a misattribution.
Venera 6 — The landing coordinates 5°S 23°E are incorrect; Venera 6 did not have a confirmed landing site, and its descent was on the nightside of Venus with no precise coordinates recorded in canonical sources.
Venera 6 — The phrase 'full crush depth' is an invented or non-standard term; the correct term is 'crush depth' or 'design crush pressure'.
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