Hand-curated log of additions, corrections, and updates to the /mars data layer. Use this to verify data freshness when citing us, or to spot when a tracked entity has changed status.
MAVEN marked lost — contact lost 2025-12-06, NASA declared mission over 2026-06-03. Curiosity counters refreshed (~4,921 sols / 36.86 km as of 2026-06-10); Perseverance refreshed (~1,887 sols, >30 km, 33 sample tubes collected — no retrieval plan post-MSR cancellation)
Added ESCAPADE twin orbiters (launched 2025-11-13 on New Glenn NG-2, in transit, Mars orbit Sep 2027) and ESA's Rosalind Franklin rover (NASA support approved 2026-04-16; Falcon Heavy late 2028, landing ~2030) — registry now 8 rovers / 15 orbiters
MSR cancellation (Jan 2026 House minibus zeroed funding) reflected in FAQ and economy metrics; Tianwen-3 (2028 launch, ~2031 return) noted as leading sample-return path; new FAQ on next Mars missions
Mars hub launched — 7 rovers, 14 orbiters, 10 landers, 7 flybys, 8 resources, 4 programs tracked
Initial data population: all entries verified against NASA NSSDCA and agency primary sources
For corrections that should land here, email corrections@spaceodysseyhub.com.
All entries trace to NASA NSSDCA, agency primary publications, or peer-reviewed literature. See our methodology →