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USA
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| Sojourner Mars Pathfinder | Spirit and Opportunity Mars Exploration Rover (MER) | Curiosity Mars Science Laboratory (MSL) | Perseverance Mars-2020 |
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USA
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| Sojourner Mars Pathfinder | Spirit and Opportunity Mars Exploration Rover (MER) | Curiosity Mars Science Laboratory (MSL) | Perseverance Mars-2020 |
This page contains (selected) philatelic information on four USA Mars rover missions. Catalog numbers, years of issue, and notes on the satellites featured are given when available. If readers know of additional information or images, please contact the authors using the e-mail addresses at the bottom of this page.
Unlike most of our web pages, no attempt is made to be complete in this page!
| Launch information (found elsewhere) |
Launch covers (including anniversary-of-launch covers, and launch-related event covers) (farther below) |
Other postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.) (immediately below) |
|---|---|---|
| USA Mars rover missions | Early designs / proposals | |
| Mars Pathfinder / Sojourner | Mars Pathfinder / Sojourner | |
| Mars Pathfinder (on other than Mars Pathfinder launch covers) | ||
| Mars Exploration Rover (MER) / Spirit and Opportunity | Mars Exploration Rover (MER) / Spirit and Opportunity | |
| Mars Science Laboratory (MSL) / Curiosity | Mars Science Laboratory (MSL) / Curiosity | |
| Mars-2020 / Perseverance | Mars-2020 / Perseverance |
Below is a list of USA Mars rover mission postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.).
| Country | Catalog Number | Type of Item | Year of Issue | Notes on Content |
|---|---|---|---|---|
| (Selected) philatelic items depicting or referring to USA Mars rover missions. No attempt is made to be complete. | ||||
| Early designs / proposals | ||||
| Central African Republic | 845 (Mi1270A) i845 (Mi1270B) | Imperforate | 1987 | Viking-3 "Mars rover"2 (and 2 orbiters); (see also Comoro 279) |
| Central African Republic | 845a (BL409) i845a | On stamp of SS1 (845) On stamp of imperforate SS1 (i845) | ||
| Comoro Islands | 279 (Mi373A) i279 (Mi373B) | Imperforate | 1977 | "Viking-III Mars" rover2 (on stamp); (see also CAR 845) |
| Comoro Islands | 279a (BL112) | SS1 (279) | ||
| Comoro Islands | 786 (Mi992) i786 | Imperforate | 1992 | "Mars rover (USA); Marsokod (URSS)" |
| Comoro Islands | 786b (BL369) i786b | On stamp of SS1 (786) On stamp of imperforate SS1 (i786) | ||
| Comoro Islands | 787a (Mi990+992-993) i787a | On one of MS3 (784+786-787) On one of imperforate MS3 (i784+i786-i787) | ||
| Mars Pathfinder / Sojourner | ||||
| Burundi | 1155d (Mi2723A) i1155d (Mi2723B) | One of MS4 (1155 (a-d)) (Mi2720A-2723A) One of imperforate MS4 (i1155 (a-d)) (Mi2720B-2723B) | 2012 | "Sojourner" |
| Central African Republic | 1371c (Mi2605A) i1371c (Mi2605B) | One of MS3 (1371 (a-c)) (Mi2603A-2605A) One of imperforate MS3 (i1371) | 2000 | "Mars Pathfinder mission robotique sur Mars, juin 1998" |
| Comoro Islands | 1009f (Mi1951) | One of MS6 (1009 (a-f)) (Mi1946-1951) | 2008 | "Sojourner" |
| Comoro Islands | Unknown ss (BL450) | In (upper-right) margin of SS1 | Sojourner and landing pad (see also Congo Republic Unknown ms 2019) | |
| Congo Republic | Unknown ms (Mi?) | In (surrounding) margin of MS2 (a-b) | 2019 | Depiction of the landing pad and the Sojourner rover at the lower-right is the same as that found in Comoro Islands 1010 2008 |
| Gambia | 2177 (BL?) | SS1 | 1999 | "Mars Pathfinder" |
| Guinea Republic | 1614 (Mi2686-2691) | In (upper) margin of MS6 (1614 (a-f)) | 1999 | "L'Éclaireur [i.e. Pathfinder] landed on Mars on 4 July 1997" (in French text, the landing pad is depicted) |
| Guinea Republic | BL768 | In (upper) margin of SS1 (Mi3996) | 2002 | |
| Guinea Republic | Mi5289 | Two stamps and in (upper, lower-left, and lower-right) margins of MS6 (Mi5289-5294) | 2007 | "Mars Pathfinder" (in upper margin text), landing pad (in lower-left margin), descent ramp for landing pad (in lower-right margin) |
| Guinea Republic | Mi5294 | |||
| Guinea Republic | Mi5289-5294_ms6 fdc | MS6 on FDC | ||
| Guinea Republic | BL1480 | SS1 | "Mars Pathfinder" (in upper margin text, otherwise shown on stamp) | |
| Guinea Republic | BL1480 fdc | SS1 on FDC | ||
| Guinea Republic | BL1481 | On stamp and in (lower-left) margin of SS1 | "Mars Pathfinder" | |
| Guinea Republic | BL1482 | SS1 | "Mars Pathfinder" / "Sojourner" (name on stamp and in upper-margin, shown in lower-left margin) | |
| Isle of Man (Great Britain) | KM1010+KM1010a | 1 crown (copper-nickel and silver coins) | 1999 | "Mars Pathfinder" |
| Malagasy Republic | 1541f (Mi2510) | One of MS6 (1541 (a-f)) (Mi2505-2510) | 2000 | |
| Malagasy Republic | Unknown c (Mi?) Unknown ic | One of MS3 (a-c) One of imperforate MS3 (a-c) | 2017 | "Sojourner" |
| Malagasy Republic | Unknown ms fdc Unknown ims fdc | MS3 on FDC Imperforate MS3 on FDC | ||
| Mali | 917 (Mi1929?) | In (left) margin of MS4 (917 (a-d)) | 1997 | "Mars Pathfinder" |
| Mali | 917E (Mi1936?) | MS4 (917E (f-i)) | ||
| Mali | 936 (Mi1937-1945) i936 | MS9 (936 (a-i)) Imperforate MS9 (i936 (a-i)) | 1997 | "Mars Pathfinder" and patch |
| Marshall Islands | 730l (Mi?) | One of MS15 (730 (a-o)) | 2000 | |
| Marshall Islands | 730l fdc | Stamp and cachet on FDC | ||
| Micronesia | 344t (Mi740) | One of MS20 (344 (a-t)) (Mi721-740) | 1999 | "Sojourner" |
| Nevis | 1186j (Mi?) | One stamp and in (left) margin of MS17 (1186 (a-q + label)) | 2000 | "Sojourner" |
| Nevis | 1186j specimen | One stamp overprinted "specimen" and in (left) margin of MS17 (1186 specimen (a-q + label)) | ||
| Niger | 1076e (Mi1912A) i1076e (Mi1912B) | One of MS9 (1076 (a-i)) (Mi1908-1916) One of imperforate MS9 (i1076 (a-i)) | 2001 | Sojourner (on bottom) |
| Palau | 411 (BL46) | SS1 | 1996 | "Mars Pathfinder Mission" |
| Palau | 411 fdc | SS1 on FDC | ||
| Rwanda | Unknown i (Mi?) | One of MS10 (a-j) | 2010 | "Sojourner" |
| St. Thomas and Prince Islands | Unknown1 (Mi?) | From MS9 (9x unknown1) | 2004 | Part of Mars Pathfinder landing pad and Mars Pathfinder |
| St. Thomas and Prince Islands | Unknown 2 (Mi?) | From MS9 (9x unknown2) | ||
| St. Thomas and Prince Islands | Unknown ms (Mi?) | Two of four stamps on MS4 (a-d) | ||
| St. Thomas and Prince Islands | Unknown ss (BL?) | |||
| St. Thomas and Prince Islands | 1685c (Mi3002) | One of MS4 (1685 (a-d)) (Mi3000-3003) | 2007 | "Mars [Pathfinder] Rover" (Sojourner) |
| St. Thomas and Prince Islands | 1685a-d fdc | One of four stamps on FDC | ||
| St. Thomas and Prince Islands | 1685 fdc | MS4 and cachet on FDC | ||
| Sierra Leone | Mi10043 | One of MS4 (Mi10041-10044) | 2018 | "Sojouner" |
| Sierra Leone | Mi10041-10044_ms4 fdc | MS4 on FDC | ||
| United States | 3178 (BL39) 3178 back | SS1 (3178a) | 1997 | "Mars Pathfinder" / "Sojourner" |
| United States | 3178 fdc | SS1 and (ArtCraft) cachet on FDC | ||
| United States | 3178a fdc1 | Stamp from SS1 on FDC (? cachet) | ||
| United States | 3178a fdc2 | Stamp from SS1 and (Space Voyage) cachet on FDC | ||
| United States | 3178a fdc3 | Stamp from SS1 and (Colorano silk) cachet on FDC | ||
| United States | 3178a fdc4 | Stamp from SS1 and (Collins) cachet on FDC, also insert | ||
| United States | 3178a fdc5 | Stamp from SS1 and (WII) cachet on FDC | ||
| United States | 3178a fdc6 | Stamp from SS1 on FDC (WII cachet, different) | ||
| United States | 3178a fdc7 | Stamp from SS1 and (BGC) cachet on FDC | ||
| United States | SP1256 | (USPS) Souvenir page (3178) | ||
| United States | 3173 cover (Mi? cover) | (Mars Pathfinder Station) cancel on cover | 1998 | "Mars Pathfinder" |
| United States | 3187d fdc1 (Mi3126 fdc1) | (Space Voyage red and pink and black) cachet on FDC | 1999 | "Mars [Pathfinder] Rover" (Sojourner) |
| United States | 3187d fdc2 (Mi3126 fdc2) | (Space Voyage red and tan and green) cachet on FDC | ||
| United States | 3188c fdc1 (Mi3173 fdc1) | (Space Voyage red and tan and green) cachet on FDC | ||
| United States | 3188c fdc2 (Mi3173 fdc2) | (Space Voyage red and tan and black) cachet on FDC | ||
| United States | 3188c fdc3 (Mi3173 fdc3) | (Space Voyage red and tan and blue) cachet on FDC | ||
| United States | 3189i fdc1 (Mi3233 fdc1) | (Space Voyage red and tan and black) cachet on FDC | ||
| United States | 3189i fdc2 (Mi3233 fdc2) | (Space Voyage red and tan and green) cachet on FDC | ||
| United States | 3188e fdc (Mi3175 fdc) | (Space Voyage red and tan and brown) cachet on FDC | 1999 | "Mars [Pathfinder] Rover / Sojourner" |
| United States | 3189i fdc (Mi3233 fdc) | (Space Voyage red and tan and black) cachet on FDC | 1999 | |
| United States | 3190a fdc1 (Mi3243 fdc1) | (Space Voyage red and peach and purple) cachet on FDC (Mission Control Station cancel) | 2000 | |
| United States | 3190a fdc2 (Mi3243 fdc2) | (Space Voyage red and peach and purple) cachet on FDC (STS-103 Station cancel) | ||
| United States | 3190a fdc3 (Mi3243 fdc3) | (Space Voyage red and peach and black) cachet on FDC (Nassau Bay Branch, Houston TX cancel) | ||
| United States | 3190a fdc4 (Mi3243 fdc4) | (Space Voyage red and pink and purple) cachet on FDC (STS-103 Station cancel) | ||
| United States | 3191h fdc (Mi3295 fdc) | (Space Voyage red and peach and black) cachet on FDC | 2000 | |
| United States | 3191 (BL51, Mi3288-3302) 3191 back | In text on pane of 15 (3191 (a-o)) | 2000 | "Mars Pathfinder" (Sojourner) |
| United States | 3191 fdc | MS15 on FDC (ArtCraft cachet) | ||
| United States | SP1259J | (USPS) souvenir page (3191), also back | ||
| United States | CP537J page1 | (USPS) commemorative panel (3191), also page2 | ||
| United States | 5072 fdc (Mi5246 fdc) | (Webcraft) cachet on FDC | 2016 | "Mars Pathfinder" |
| Mars Exploration Rover (MER) / Spirit and Opportunity | ||||
| Albania | 2883 (Mi3317) | From MS10 (2883a (10x 2883)), also annotated | 2009 | MER |
| Albania | 2884a | On 2883 stamp in booklet pane of 3 (2882-2884), with booklet cover, also cover annotated | ||
| Australia | KM1261 | $1. (aluminum-bronze coin) | 2009 | "Spirit" and "Opportunity" |
| Austria | KM3204 | 25 euro (silver-niobium coin) | 2011 | (on reverse) |
| Burundi | 1155a (Mi2720A) i1155a (Mi2720B) | One of MS4 (1155 (a-d)) (Mi2720A-2723A) One of imperforate MS4 (i1155 (a-d)) (Mi2720B-2723B) | 2012 | "Mars Exploration Rover" |
| Cayman Islands | 1045 (Mi1160) | From MS6 (1045a (6x 1045)) | 2009 | "Mars [Exploration] Rover" |
| Comoro Islands | 1009a (Mi1946) | One of MS6 (1009 (a-f)) (Mi1946-1951) | 2008 | "Spirit" |
| Comoro Islands | 1010 (BL450) | In (lower-left) margin of SS1 | "Mars" Exploration Rover | |
| Djibouti | Unknown b (Mi?) | One of MS2 (a-b) | 2013 | |
| Djibouti | Unknown a (Mi?) | One of MS4 (a-d) | 2016 | "Mars [Exploration] Rover / Spirit" |
| Djibouti | Unknown ss (BL?) | On stamp of SS1 | ||
| Djibouti | Unknown ss (BL?) | In (lower-right) margin of SS1 | ||
| Grenada | 3466 (Mi5487-5492) | MS6 (3466 (a-f)) | 2004 | "Mars Exploration Rover Mission" |
| Guinea Republic | 2226 (Mi4056) | 2003 | "Mars [Exploration] Rover" | |
| Guinea Republic | 2226a (BL820) i2226a | On stamp of SS1 (2226) On stamp of imperforate SS1 (i2226) | ||
| Guinea Republic | 2226a fdc | SS1 on FDC | ||
| Guinea Republic | 2226b (Mi4056) i2226b | MS4 (4x 2226) Imperforate MS4 (4x i2226) | ||
| Guinea Republic | 2226b fdc | MS4 and cachet on FDC | ||
| Guinea Republic | Mi4100A Mi4100B | From MS3 (Mi4100A-4102A) From imperforate MS3 (Mi4100B-4102B) | 2004 | "Spirit" |
| Guinea Republic | Mi4101A Mi4101B | "Opportunity" | ||
| Guinea Republic | BL850A BL850B | SS1 Imperforate SS1 | "Spirit" (on stamp), "bras du robot Opportunity" (in upper-left margin); also that same depiction of Opportunity's robot arm (in the FDC cachet) | |
| Guinea Republic | BL850A fdc | SS1 and cachet on FDC | ||
| Guinea Republic | BL851A BL851B | On stamp and in (lower) margin of SS1 On stamp and in (lower) margin of imperforate SS1 | "Opportunity" | |
| Guinea Republic | BL851A fdc | SS1 on FDC | ||
| Guinea Republic | BL1482 | On stamp of SS1 | 2007 | |
| Guinea Republic | BL1567 | In (upper) margin of SS1 | 2008 | "Spirit" and "Opportunity" |
| Guinea Republic | BL1567 fdc | SS1 and cachet on FDC | ||
| Guinea-Bissau | Unknown d (Mi?) | One of MS6 (a-f) | 2008 | |
| Guinea-Bissau | BL680 | In (lower-center) margin of SS1 | ||
| Guyana | Unknown a (Mi?) | From MS4 (a-d) | 2013 | "Mars [Exploration] Rover" |
| Guyana | Unknown b (Mi?) | "Spirit" | ||
| Ivory Coast | Unknown b (Mi?) Unknown ib | One of MS4 (a-d) One of imperforate MS4 (a-d) | 2011 | "Mars [Exploration] Rover" |
| Ivory Coast | Unknown ms (Mi?) | In (lower) margin of MS4 (a-d) | 2012 | "Mars [Exploration] Rover" |
| Malagasy Republic | Unknown a (Mi?) Unknown ia | From MS6 (a-f) From imperforate MS6 (a-f) | 2004 | |
| Malagasy Republic | Unknown c (Mi?) Unknown ic | |||
| Malagasy Republic | Unknown c (Mi?) | One of MS4 (a-d) [known illegal issue] | 2011 | "Mars [Exploration] Rover" |
| Malagasy Republic | Unknown ss (BL?) | In (lower-right) margin of SS1 | 2014 | |
| Maldive Islands | BL1082 | On stamp (Mi7087) of SS1 | 2017 | "Spirit and Opportunity" |
| Mozambique | Unknown ms (Mi?) | In (lower-right) margin of MS4 (a-d) | 2014 | |
| St. Kitts | 871c (Mi1374) | One of MS4 (871 (a-d)) (Mi1372-1375) | 2014 | "Mars [Exploration] Rover" |
| St. Thomas and Prince Islands | 1685b (Mi?) | One of MS4 (1685 (a-d)) (Mi3000-3003) | 2007 | "Mars [Exploration] Rover" |
| St. Thomas and Prince Islands | 1685a-d fdc | One of four stamps on FDC | ||
| St. Thomas and Prince Islands | 1685 fdc | MS4 on FDC | ||
| Sierra Leone | Unknown ss (BL?) | In (right) margin of SS1 | 2015 | "Spirit" |
| Sierra Leone | Mi10041-10044_ms4 | In (upper-right) margin of MS4 (Mi10041-10044) | 2018 | |
| Sierra Leone | Mi10041-10044_ms4 fdc | MS4 and cachet on FDC | ||
| Sierra Leone | BL1517 | In (right) margin of SS1 | "Mars Exploration Rover (MER)" | |
| Sierra Leone | BL1517 fdc | SS1 on FDC | ||
| Somalia | Unknown ms (Mi?) | MS6 (a-f) | 2004 | "Mars Exploration Rover" |
| Somali Republic | Unknown a (Mi?) | From MS4 (a-d) [known illegal issue] | 2005 | Early-design MER |
| Somali Republic | Unknown b (Mi?) | MER | ||
| United States | None | (Pasadena CA, Mission Management Station) cancel | 2003 | "Mars Exploration Rover-A" |
| United States | None | (Pasadena CA, Mission Management Station) cancel | 2003 | "Mars Exploration Rover-B" |
| United States | None | Cachet on (un-canceled) cover | 200? | "Spirit" and "Opportunity" |
| Mars Science Laboratory (MSL) / Curiosity | ||||
| Benin | Unknown d (Mi?) | One of MS4 (a-d) | 2012 | MSL lander (not "Mars-1" as in text) |
| Burundi | 1155b (Mi2721A) i1155b (Mi2721B) | One stamp and in (upper) margin of MS4 (1155 (a-d)) (Mi2720A-2723A) One stamp and in (upper) margin of imperforate MS4 (i1155 (a-d)) (Mi2720B-2723B) | 2012 | "Curiosity" |
| Burundi | 1174 (BL268A) i1174 (BL268B) | SS1 Imperforate SS1 | ||
| Burundi | BL494A BL494B | In (lower-left and lower-right) margins of MS2 (Mi3478A-3479A) In (lower-left and lower-right) margins of imperforate MS2 (Mi3478B-3479B) | 2014 | |
| Burundi | BL497A BL497B | In (right) margin of SS1 (Mi3479A) In (right) margin of imperforate SS1 (Mi3479B) | "Curiosity" | |
| Congo (Democratic Republic) | Mi2191A Mi2191B | One of MS3 (Mi2191A-2193A) vertical, or one of MS3 (Mi2191A-2193A) horizontal One of imperforate MS3 (Mi2191B-2193B) vertical, or one of imperforate MS3 (Mi2191B-2193B) horizontal | 2013 | "MSL" / "Curiosity" |
| Curacao | 236c-d (Mi?) | From MS4 (236 (a-d)) (BL20) | 2015 | "Mars lander" and "Curiosity" |
| Guinea Republic | Mi9440-9442_ms3 | MS3 (Mi9440-9442) | 2012 | "Mars Science Laboratory" / "Curiosity" |
| Guinea Republic | Unknown ms (Mi?) | MS3 (a-c) | 2012 | "Mars Science Laboratory" / "Curiosity" |
| Guinea Republic | Unknown ss (BL?) | SS1 | ||
| Guyana | Mi8606-86-9_ms4 | In (lower-left) margin of MS4 (Mi8606-8609) | 2013 | "Curiosity" |
| Guyana | Unknown c (Mi?) | One stamp and in (lower-left) margin of MS4 (a-d) | 2013 | "Curiosity" |
| Kiribati | 969 (Mi?) | 2009 | "Mars Science Laboratory" / Curiosity | |
| Kiribati | 969 specimen | Overprinted "specimen" | ||
| Kiribati | 969-973 fdc | One of five stamps on FDC | ||
| Malagasy Republic | Unknown ss (BL?) Unknown iss | On stamp of SS1 On stamp of imperforate SS1 | 2017 | "Curiosity" |
| Malagasy Republic | Unknown ss fdc Unknown iss fdc | SS1 on FDC Imperforate SS1 on FDC | ||
| Malagasy Republic | Unknown ms fdc Unknown ims fdc | Cachet on FDC Cachet on imperforate-stamped FDC | ||
| Maldive Islands | Unknown d (Mi?) | One of MS4 (a-d) | 2015 | "Curiosity" |
| Maldive Islands | BL1205 (BL?) | On stamp and in (lower-left) margin of SS1 | 2018 | "Rover Curiosity" |
| Maldive Islands | BL1205 fdc | SS1 and (multi-color printed) cachet on FDC | ||
| Maldive Islands | Mi7698-7701_ms4 fdc | (Multi-color printed) cachet on FDC | ||
| Mozambique | 2707 (Mi6265-6270) | MS6 (a-f) | 2012 | "Curiosity" |
| Mozambique | 2737 (BL705) | SS1 | ||
| Mozambique | 2737 fdc | SS1 and cachet on FDC | ||
| Niue | 814c (Mi1079) | One of MS4 (814 (a-d)) (Mi1077-1080) | 2007 | "Mars Science Laboratory" |
| Rwanda | Unknown ms (Mi?) | In (lower) margin of MS4 (a-d) | 2012 | "Curiosity" descending to Mars |
| St. Kitts | 870 (Mi1368-1371) | In (left) margin of MS4 (870 (a-d)) | 2014 | "Curiosity" descending to Mars |
| St. Kitts | 871 (Mi1372-1375) | In (left) margin of MS4 (871 (a-d)) | 2014 | "Curiosity" hovering over Mars |
| Sierra Leone | Unknown ss (BL?) | On stamp of SS1 | 2015 | "Curiosity" |
| Sierra Leone | Unknown ss (BL?) | SS1 | 2016 | "Mars Science Laboratory" (on stamp) and "Curiosity Mars rover" (in lower margin) |
| Somali Republic | Unknown c (Mi?) | One of MS4 (a-d) [known illegal issue] | 2005 | |
| United States | None | (Zazzle.com) personalized postage | ~2011 | "Curiosity" |
| United States | None | (Zazzle.com) personalized postage | 2015 | "Mars Science Laboratory" |
| United States | None | (Zazzle.com) personalized postage (different) | 2015 | "Curiosity" |
| United States | None | (Zazzle.com) personalized postage (different) | 2015 | |
| Mars-2020 / Perseverance | ||||
| No (non-launch cover) postal items found | ||||
Below is a list of USA Mars rover mission launch covers (including anniversary-of-launch covers, and launch-related event covers).
| Country | Cancel Date | Cancel Location | Type of Item | Notes on Content |
|---|---|---|---|---|
| 1996-12-03: Mars Pathfinder / Sojourner | ||||
| United States | 1996-12-03 | Pasadena CA | (Mission Operations Station) cancel and (mission patch) cachet on cover | Mars Pathfinder/Sojourner launch |
| United States | 1996-12-03 | Pasadena CA | (Mission Operations Station) cancel and (mission patch) cachet (different) on cover, also insert and insert back | Mars Pathfinder/Sojourner launch |
| United States | 1996-12-04 | Kennedy Space Center FL | (Launch Station) cancel and (mission patch) cachet on cover | Mars Pathfinder/Sojourner launch |
| United States | 1996-12-04 1997-07-04 | Kennedy Space Center FL Pasadena CA | (Two pictorial) cancels and (Space Voyage) cachet on cover | Mars Pathfinder/Sojourner launch Mars Pathfinder/Sojourner landing |
| Mars Pathfinder / Sojourner (events) | ||||
| United States | 1997-07-04 | Pasadena CA | (Landing Station) cancel and (mission patch) cachet on cover | Mars Pathfinder/Sojourner landing |
| United States | 1997-07-04 | Pasadena CA | (Landing Station) cancel and (mission patch) cachet (different) on cover | Mars Pathfinder/Sojourner landing |
| United States | 1997-07-04 | Pasadena CA | (Landing Station) cancel and (cyan printed) cachet on cover | Mars Pathfinder/Sojourner landing |
| United States | 1997-07-04 1996-12-04 | Pasadena CA Kennedy Space Center FL | (Two pictorial) cancels and (Space Voyage) cachet on cover | Mars Pathfinder/Sojourner landing Mars Pathfinder/Sojourner launch |
| United States | 1997-07-04 1997-07-04 | Pasadena CA Roswell NM | (One of two pictorial) cancels and (Space Voyage printed) cachet on cover | Mars Pathfinder/Sojourner landing Roswell UFO Encounter '97 |
| United States | 1997-07-04 1997-07-04 | Pasadena CA Roswell NM | (One of two pictorial) cancels and (Space Voyage printed, with missing text) cachet on cover | Mars Pathfinder/Sojourner landing Roswell UFO Encounter '97 |
| United States | 1997-07-04 1997-07-04 | Pasadena CA Roswell NM | (One of two pictorial) cancels and (Space Voyage sticker) cachet on cover | Mars Pathfinder/Sojourner landing Roswell UFO Encounter '97 |
| Mars Pathfinder (on other than Mars Pathfinder launch covers) | ||||
| United States | 1998-04-26 | Pasadena CA | (Pictorial) cancel on Cassini-Huygens event cover | Sojourner |
| United States | 1999-06-19 | Pasadena, CA | (Pictorial) cancel on QuikScat launch cover | Sojourner |
| United States | 1999-06-24 | Pasadena CA | (Pictorial) cancel on Cassini-Huygens event cover | Sojourner |
| United States | 1999-08-17 | Pasadena CA | (Pictorial) cancel on Cassini-Huygens event cover | Sojourner |
| United States | 1999-09-23 | Pasadena CA | (Pictorial) cancel on MCO event cover | Sojourner |
| United States | 1999-12-18 | Pasadena CA | (Pictorial) cancel on EOS-Terra launch cover | Sojourner |
| United States | 1999-12-20 | Pasadena CA | (Pictorial) cancel on ACRIMSAT launch cover | Sojourner |
| United States | 2000-10-06 | Pasadena CA | (Pictorial) cancel on Ulysses anniversary cover | Sojourner |
| United States | 2000-12-30 | Pasadena CA | (Pictorial) cancel on Cassini-Huygens event cover | Sojourner |
| United States | 2001-08-08 | Pasadena CA | (Pictorial) cancel on Genesis launch cover | Sojourner |
| United States | 2001-11-26 2002-01-05 | Pasadena CA (pictorial cancel) Pasadena CA (text cancel) | (Pictorial) cancel on Cassini-Huygens event cover | Sojourner |
| United States | 2001-12-07 | Pasadena CA | (Pictorial) cancel on Jason-1 and TIMED launch cover | Sojourner |
| Mars Exploration Rover (MER) / Spirit and Opportunity | ||||
| MER (pre-launch events) | ||||
| United States | 1996-12-17 | Twenty Palms CA | (Cartier Cachet) cachet on cover, also back | Rocky-7 rover test (a precursor of MER) |
| 2003-06-10: MER-A / Spirit | ||||
| United States | 2003-06-10 | Pasadena CA | (Mission Management Station) cancel and (JPL Stamp Club) cachet on cover | MER-A/Spirit launch |
| MER-A / Spirit (events) | ||||
| United States | 2004-01-03 | Pasadena CA | (Landing Station) cancel and (mission patch) cachet on cover | MER-A/Spirit landing |
| United States | 2004-01-03 | Pasadena CA | (Landing Station) cancel and (JPL Stamp Club) cachet on cover | MER-A/Spirit landing |
| United States | 2004-01-03 | Pasadena CA | (Landing Station) cancel and (multi-color printed) cachet on cover | MER-A/Spirit landing |
| United States | 2004-01-03 2004-01-03 | Pasadena CA (pictorial cancel) Pasadena CA (text cancel) | (Landing Station) cancel and (green printed) cachet on cover | MER-A/Spirit landing |
| 2003-07-07: MER-B / Opportunity | ||||
| United States | 2003-07-07 | Pasadena CA | (Mission Management Station) cancel and (JPL Stamp Club) cachet on cover | MER-B/Opportunity launch |
| United States | 2003-07-07 | Cape Canaveral FL | (Multi-color printed) cachet on cover | MER-B/Opportunity launch |
| MER-B / Opportunity (events) | ||||
| United States | 2004-01-24 | Pasadena CA | (Landing Station) cancel and (mission patch) cachet on cover | MER-B/Opportunity landing |
| United States | 2004-01-24 | Pasadena CA | (Landing Station) cancel and (JPL Stamp Club) cachet on cover | MER-B/Opportunity landing |
| United States | 2004-01-24 | Pasadena CA | (Landing Station) cancel and (multi-color printed) cachet on cover | MER-B/Opportunity landing |
| United States | 2004-01-24 2004-01-24 | Pasadena CA Pasadena CA | (Landing Station) cancel and (blue printed) cachet on cover | MER-B/Opportunity landing |
| United States | 2019-02-13 | Sagamore Beach MA | (Coverscape) cachet on cover | MER-B/Opportunity "mission declared completed" |
| 2011-11-26: Mars Science Laboratory (MSL) / Curiosity | ||||
| United States | 2011-11-26 | Cape Canaveral FL | (Lollini) cachet on cover | MSL/Curiosity launch |
| United States | 2011-11-26 | Pasadena CA | (Mission to Mars Station) cancel and (Lollini) cachet (different) on cover | MSL/Curiosity launch |
| United States | 2011-11-26 | Pasadena CA | (Mission to Mars Station) cancel and (JPL Stamp Club) cachet on cover | MSL/Curiosity launch |
| United States | 2011-11-26 | Pasadena CA | (Mission to Mars Station) cancel and (multi-color printed, including mission patch) cachet on cover | MSL/Curiosity launch |
| United States | 2011-11-26 | Cape Canaveral FL | (Multi-color printed) cachet on cover | MSL/Curiosity launch |
| United States | 2011-11-26 | Pasadena CA | (Mission to Mars Station) cancel and (photo/sticker) cachet on cover | MSL/Curiosity launch |
| MSL / Curiosity (events) | ||||
| United States | 2012-08-05 | Pasadena CA | (Arrival at Gale Crater Station) cancel and (multi-color printed) cachet on cover | MSL/Curiosity arrival at Gale Crater (landing) |
| United States | 2012-08-05 | Pasadena CA | (Arrival at Gale Crater Station) cancel and (multi-color printed) cachet (different) on cover | MSL/Curiosity lands in Gale Crater (landing); also Mars-Pathfinder/"Sojourner", MER-A/"Spirit", and MER-B/"Opportunity" (in cachet) |
| United States | 2012-08-05 | Pasadena CA | (Arrival at Gale Crater Station) cancel and (JPL Stamp Club) cachet on cover | MSL/Curiosity lands in Gale Crater (landing) |
| United States | 2012-08-05 | Pasadena CA | (Arrival at Gale Crater Station) cancel and (TC) cachet on cover | MSL/Curiosity lands in Gale Crater (landing) |
| United States | 2012-08-05 | Pasadena CA | (Arrival at Gale Crater Station) cancel and (TC) cachet (and signature) on cover, and back | MSL/Curiosity lands in Gale Crater (landing) |
| United States | 2012-08-05 | Pasadena CA | (Arrival at Gale Crater Station) cancel and (photo/sticker) cachet on cover | MSL/Curiosity lands in Gale Crater (landing) |
| United States | 2014-06-03 | Pasadena CA | (Multi-color printed, including mission patch) cachet on cover | "Mars Curiosity rover capture of Mercury crossing Sun" |
| United States | 2014-06-24 | Pasadena CA | (Multi-color printed, including mission patch) cachet on cover | "Mars Curiosity rover marking of one Mars year" |
| United States | 2014-09-11 | Pasadena CA | (Multi-color printed, including mission patch) cachet on cover | MSL/Curiosity "arrives at Mount Sharp" |
| United States | 2019-01-27 | Pasadena CA | (Red Eagle) cachet on cover | "Mars Curiosity leaves Vera Rubin Ridge" |
| Mars-2020 / Perseverance (pre-launch events) | ||||
| United States | 2019-12-15 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars-2020 aeroshell delivered to KSC" |
| United States | 2020-03-05 | Kennedy Space Center FL | (Multi-color printed) cachet on cover | "Mars-2020 rover named Perseverance" |
| United States | 2020-03-10 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars rover Perseverance helicopter testing" |
| United States | 2020-03-30 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars Perseverance rover wheels installed" |
| United States | 2020-04-06 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars helicopter attached to Perseverance" (rover) |
| United States | 2020-04-29 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars Perseverance rover descent stage installed" |
| United States | 2020-05-11 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars-2020 Perseverance rover sample tubes arrive KSC" |
| United States | 2020-06-15 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars-2020 Perseverance rover assembly completed" |
| United States | 2020-06-18 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars Perseverance rover prepared for encapsulation" |
| United States | 2020-06-22 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "ULA Mars Perseverance rover countdown launch rehearsal" |
| United States | 2020-07-20 | Kennedy Space Center FL | (Red Eagle) cachet on cover | "Mars Perseverance rover nuclear power source installed" |
| 2020-07-30: Mars-2020 / Perseverance | ||||
| United States | 2020-07-30 | Pasadena CA | (Multi-color printed) cachet on cover | Mars-2020 Perseverance launch |
| United States | 2020-07-30 | Pasadena CA | (Red Eagle) cachet on cover | Mars-2020 Perseverance launch |
| United States | 2020-07-30 | Cape Canaveral FL | (Launch Station) cancel and (Thrifty) cachet on cover | Mars-2020 Perseverance launch |
| United States | 2020-07-30 | Cape Canaveral FL | (Launch Station) cancel and (Thrifty) cachet (different) on cover | Mars-2020 Perseverance launch |
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