Space Shuttle Discovery flew 39 missions between August 1984 and March 2011, spending a cumulative 365 days in space — more flights than any other crewed spacecraft. It is now displayed at the Smithsonian's Steven F. Udvar-Hazy Center in Virginia.
The question, scope, and sources behind this Registry record.
Space Shuttle Discovery flew 39 missions between August 1984 and March 2011, spending a cumulative 365 days in space — more flights than any other crewed spacecraft. It is now displayed at the Smithsonian's Steven F. Udvar-Hazy Center in Virginia.
The largest number of orbital missions flown by an individual reusable crewed spacecraft.
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Current frontiers derived from accepted Claims.
An observed or demonstrated result; no opposing bound is implied.
The frontier is not sacred
Most progress starts with a disagreement that survives contact with evidence. If you can push the known lower bound up or pull the upper bound down, show us the work.
≥ when you have shown that at least this value is achievable.≤ when you have shown that anything above this value is impossible.No vibes. State the value, define the scope, and link the paper, proof, code, or reproduction that lets another person check it. Editors review every challenge before the public record changes.
Challenge this recordAssertions tied to evidence, attribution, and review.
The frontier as it changed over time.
Only accepted Claims matching the current specification contribute to the displayed bounds. Strict inequalities remain open; contradictory Claims require editorial review.
1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-MOST-FLIGHTS-REUSABLE-SPACECRAFT
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Limits Registry. LR-MOST-FLIGHTS-REUSABLE-SPACECRAFT. Most flights by a reusable crewed spacecraft. 2026.