MESSENGER
Facts
22 properties- Instance of
- space probe, former entity[2]
- Followed by
- Deep Impact[6]
- Official website
- messenger.jhuapl.edu, science.nasa.gov[19][20]
- Part of
- Discovery Program[8]
- Apoapsis
- +10300[27]
- Described by source
- Lentapedia[21]
- Manufacturer
- Applied Physics Laboratory[7]
- Mass
- +1107.9[24]
- Nominal power output
- +450[25]
- Orbital inclination
- +80[23]
- Orbital period
- +12[26]
- P14541
- 1W7Uoq[29]
- Periapsis
- +200[28]
- Service entry
- April 4, 2011[12]
- Significant event
- rocket launch, planetary flyby, planetary flyby, planetary flyby, planetary flyby, planetary flyby, planetary flyby, orbital activity, service entry, impact[14][15][16][17][18]
- Start point
- Cape Canaveral Space Launch Complex 17B[22]
- Time of object orbit decay
- April 30, 2015[11]
- UTC date of spacecraft launch
- August 3, 2004[10]
- BabelNet ID
- 03211127n
- Bibliothèque nationale de France ID
- 18106237s
- Bing entity ID
- f03621c8-c50b-830a-fc6b-579eeb06e2fb
- COSPAR ID
- 2004-030A
- Encyclopedia of China (Third Edition) ID
- 507200
- Encyclopædia Britannica Online ID
- topic/Messenger-United-States-spacecraft
- Freebase ID
- /m/02b5zf
- Gran Enciclopèdia Catalana ID
- messenger
- Gran Enciclopèdia Catalana ID (former scheme)
- 0282178
- Great Norwegian Encyclopedia ID
- Messenger
- NAIF ID
- -236
- NSSDCA ID
- 2004-030A
Show all 15 identifiers +3
- SCN
- 28391
- Topic's main category
- Category:MESSENGER
- Vikidia article ID
- fr:MESSENGER
Significant event 8
Instance of 2
Cause of destruction 1
Location of landing 1
Manufacturer 1
Space launch vehicle 1
Start point 1
← Discoverer or inventor 1
0 sources
Summary
MESSENGER is a space probe[1].
Why It Matters
MESSENGER is credited with the discovery of Rembrandt[30], an impact crater[31].
FAQs
What did MESSENGER discover?
MESSENGER is credited as discoverer of Rembrandt[30].
high ≥ 0.90 · emerging ≥ 0.65 · low below — calibrated against hand-rated truth (single-source .44 · two-source .62 · production-typical .70), so a band is a measurement, not a promise. High is rare by design: it needs both a supported assertion and an evidence sentence. A confirmed or contradicted chip is a Wikidata cross-check; no chip means Wikidata has no value for that property — the ordinary case here, and it says nothing either way. A confirm-only note marks a property whose check can never disagree (Wikidata's border and capital data is not exhaustive), so silence there is a limit of the check, not of the claim.
served-tier precision 80.7% [76.2, 84.5] · rated rows currently served n=342 · entailment-gated at 0.85 · measured 2026-09-29 · re-scored every 10 min, demoted at the half-hourly fold
evidence “Only two previous missions, NASA’s Mariner 10 in 1974 and its MESSENGER mission in 2011, have been in the vicinity of the rocky world.” edition.cnn.com · read source
evidence “With the cooperation of NASA, the custodian of the MESSENGER images, a team led by Gaku Nishiyama, a planetary scientist at the German Aerospace Center Institute of Space Research and the lead author of the new paper, harvested two-dimensional pictures taken by the spacecraft’s dual-imaging system and combined them in such a way that every patch of surveyed land was captured twice—from slightly different angles each time.” time.com · read source