Expedition 21

21st long-duration mission to the International Space Station
Event expedition_to_the_international_space_station Q17212
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Expedition 21

Summary

Expedition 21 is an expedition to the International Space Station[1]. It draws 12 Wikipedia views per month (expedition_to_the_international_space_station category, ranking #33 of 74).[2]

Key Facts

  • Expedition 21's image is recorded as Expedition 21 crew portrait.jpg[3].
  • Expedition 21's instance of is recorded as expedition to the International Space Station[4].
  • Expedition 21's coat of arms image is recorded as ISS Expedition 21 Patch.svg[5].
  • Expedition 21's logo image is recorded as ISS Expedition 21 Patch.svg[6].
  • Expedition 21's follows is recorded as Expedition 20[7].
  • Expedition 21's followed by is recorded as Expedition 22[8].
  • Expedition 21's Commons category is recorded as ISS Expedition 21[9].
  • Expedition 21's start time is recorded as +2009-09-30T00:00:00Z[10].
  • Expedition 21's end time is recorded as +2009-12-01T00:00:00Z[11].
  • Expedition 21's Freebase ID is recorded as /m/03wcbsk[12].
  • Expedition 21's official website is recorded as http://www.nasa.gov/mission_pages/station/expeditions/expedition21/index.html[13].
  • Expedition 21's crew members is recorded as Frank De Winne[14].
  • Expedition 21's crew members is recorded as Roman Romanenko[15].
  • Expedition 21's crew members is recorded as Robert Thirsk[16].
  • Expedition 21's crew members is recorded as Jeffrey Williams[17].
  • Expedition 21's crew members is recorded as Maksim Surayev[18].
  • Expedition 21's crew members is recorded as Nicole Stott[19].
  • Expedition 21's facet of is recorded as International Space Station[20].
  • Expedition 21's duration is recorded as {'unit': 'Q11574', 'amount': '+14616577'}[21].

Why It Matters

Expedition 21 draws 12 Wikipedia views per month (expedition_to_the_international_space_station category, ranking #33 of 74).[2] It has Wikipedia articles in 16 language editions, a strong signal of global cultural recognition.[22]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  6. [8] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . Freebase Data Dumps. wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  13. [15] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  14. [16] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  15. [17] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  16. [18] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  17. [19] . nasa.gov. nasa.gov. Provenance: wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . energia.ru. energia.ru. Provenance: wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [22] . Wikidata sitelinks. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Expedition 21. Retrieved May 3, 2026, from https://4ort.xyz/entity/expedition-21
MLA “Expedition 21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/expedition-21.
BibTeX @misc{4ortxyz_expedition-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Expedition 21}}, year = {2026}, url = {https://4ort.xyz/entity/expedition-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Expedition 21 — https://4ort.xyz/entity/expedition-21 (retrieved 2026-05-03)

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