Gravity and Extreme Magnetism Small Explorer

cancelled NASA mission
Vehicle space_telescope Q1544005
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Summary

Gravity and Extreme Magnetism Small Explorer is a space telescope[1]. It draws 41 Wikipedia views per month (space telescope category, ranking #67 of 124).[2]

Key Facts

  • Field of work: X-ray astronomy[3]
  • Instance of: abandoned project[4]
  • Operator: Goddard Space Flight Center[5], Orbital Sciences Corporation[6]
  • Follows: Interface Region Imaging Spectrograph[7]
  • Followed by: Imaging X-ray Polarimetry Explorer[8]
  • Manufacturer: Orbital Sciences Corporation[9], Alliant Techsystems[10], Goddard Space Flight Center[11]
  • Part of: Small Explorer program[12]
  • Commons category: GEMS (space telescope)[13]
  • Space launch vehicle: Pegasus[14]
  • Country of origin: United States[15]
  • Powered by: photovoltaic system[16]
  • Spacecraft bus: Q141735767[17]
  • Significant event: selection[18], project cancellation[19]
  • Official website: http://gems.gsfc.nasa.gov/[20]
  • Sponsor: National Aeronautics and Space Administration[21]
  • Launch contractor: Orbital Sciences Corporation[22]
  • Start point: Stargazer[23]
  • Official name: Gravity and Extreme Magnetism SMEX[24]
  • Length: 7.12 m[25]
  • Mass: 267 kg[26]
  • Principal investigator: Jean Swank[27]

Why It Matters

Gravity and Extreme Magnetism Small Explorer is known by 4 alternative names across languages and contexts.[28]

References

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

Direct Wikidata claims

  1. [4] ↑ . web.archive.org. web.archive.org. Provenance: wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [5] ↑ . nasa.gov. nasa.gov. Provenance: wikidata.org.
  4. [6] ↑ . nasa.gov. nasa.gov. Provenance: wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . spacemart.com. spacemart.com. Provenance: wikidata.org.
  8. [10] ↑ . nasa.gov. nasa.gov. Provenance: wikidata.org.
  9. [11] ↑ . nasa.gov. nasa.gov. Provenance: wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . spacenews.com. spacenews.com. Provenance: wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . web.archive.org. web.archive.org. Provenance: wikidata.org.
  15. [17] ↑ . spacemart.com. spacemart.com. Provenance: wikidata.org.
  16. [18] ↑ . nasa.gov. nasa.gov. Provenance: wikidata.org.
  17. [19] ↑ . spacenews.com. spacenews.com. Provenance: wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . spacenews.com. spacenews.com. Provenance: wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . web.archive.org. web.archive.org. Provenance: wikidata.org.
  23. [25] ↑ . web.archive.org. web.archive.org. Provenance: wikidata.org.
  24. [26] ↑ . web.archive.org. web.archive.org. Provenance: wikidata.org.
  25. [27] ↑ . nasa.gov. nasa.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata aliases. 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). Gravity and Extreme Magnetism Small Explorer. Retrieved October 16, 2026, from https://4ort.xyz/entity/gravity-and-extreme-magnetism-small-explorer
MLA “Gravity and Extreme Magnetism Small Explorer.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/gravity-and-extreme-magnetism-small-explorer.
BibTeX @misc{4ortxyz_gravity-and-extreme-magnetism-small-explorer_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Gravity and Extreme Magnetism Small Explorer}}, year = {2026}, url = {https://4ort.xyz/entity/gravity-and-extreme-magnetism-small-explorer}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Gravity and Extreme Magnetism Small Explorer — https://4ort.xyz/entity/gravity-and-extreme-magnetism-small-explorer (retrieved 2026-10-16)

Canonical URL: https://4ort.xyz/entity/gravity-and-extreme-magnetism-small-explorer · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5d ago · Huntster · 2026-10-14 view diff on Wikidata ↗
    Spacecraft bus → Q141735767
    Claims rich → —
    "/* wbsetclaim-update:2||1 */ Spacecraft bus: Q141735767"
  2. 11w ago · William Avery Bot bot · 2026-08-01 view diff on Wikidata ↗
    Website → —
    Instance of → —
    Space launch vehicle → Pegasus
    Commons category → —
    + 43 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-statements-multiple-properties-update:0||6 */ Changing http://web.archive.org/ URLs to https (×6). See [[Wikidata:Requests_for_permissions/Bot/William_Avery_Bot_14|request for permissi"
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