{"id":4874,"date":"2017-09-13T22:06:54","date_gmt":"2017-09-14T02:06:54","guid":{"rendered":"http:\/\/www.maproomblog.com\/?p=4874"},"modified":"2017-09-13T22:06:54","modified_gmt":"2017-09-14T02:06:54","slug":"new-gravity-map-of-mars","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2017\/09\/new-gravity-map-of-mars\/","title":{"rendered":"New Gravity Map of Mars"},"content":{"rendered":"
\"\"<\/a>
NASA\/Goddard\/UMBC\/MIT\/E. Mazarico<\/figcaption><\/figure>\n

A new gravity map of Mars<\/a>\u00a0that shows the thickness of the Martian crust based on gravity measurements from Martian orbiters, reveals a crust that is less dense and shows less variation than earlier maps. \u201cThe researchers mapped the density of the Martian crust, estimating the average density is 2,582 kilograms per meter cubed (about 161 pounds per cubic foot). That\u2019s comparable to the average density of the lunar crust. Typically, Mars\u2019 crust has been considered at least as dense as Earth\u2019s oceanic crust, which is about 2,900 kilograms per meter cubed (about 181 pounds per cubic foot).\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"

A new gravity map of Mars\u00a0that shows the thickness of the Martian crust based on gravity measurements from Martian orbiters, reveals a crust that is less dense and shows less variation than earlier maps. \u201cThe… More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[893,295,12],"class_list":["post-4874","post","type-post","status-publish","format-link","hentry","category-astronomy","tag-gravity","tag-mars","tag-nasa","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1834248,"url":"https:\/\/www.maproomblog.com\/2024\/09\/new-gravity-map-of-mars-reveals-subsurface-variations\/","url_meta":{"origin":4874,"position":0},"title":"New Gravity Map of Mars Reveals Subsurface Variations","author":"Jonathan Crowe","date":"24 September 2024","format":"link","excerpt":"Gravity map of Mars, from Root et al. A study presented earlier this month at the Europlanet Science Congress maps the variations in Mars\u2019s gravitational field. Dr Root and colleagues from TU Delft and Utrecht University used tiny deviations in the orbits of satellites to investigate the gravity field of\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/www.maproomblog.com\/category\/astronomy\/"},"img":{"alt_text":"Gravity map of Mars. The red circles show prominent volcanoes on Mars and the black circles show impact crates with a diameter larger than a few 100 km. A gravity high signal is located in the volcanic Tharsis Region (the red area in the centre right of the image), which is surrounded by a ring of negative gravity anomaly (shown in blue).","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/09\/gravity-mars.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/09\/gravity-mars.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/09\/gravity-mars.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/09\/gravity-mars.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/09\/gravity-mars.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/09\/gravity-mars.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1291,"url":"https:\/\/www.maproomblog.com\/2016\/03\/mars-gravity-map-2\/","url_meta":{"origin":4874,"position":1},"title":"New Gravity Map of Mars","author":"Jonathan Crowe","date":"21 March 2016","format":"link","excerpt":"A new gravity map of Mars, based on data from three orbiting spacecraft, has been released. \"Slight differences in Mars' gravity changed the trajectory of the NASA spacecraft orbiting the planet, which altered the signal being sent from the spacecraft to the Deep Space Network. These small fluctuations in the\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/www.maproomblog.com\/category\/astronomy\/"},"img":{"alt_text":"mars-gravity-hemispheres","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2016\/03\/mars-gravity-hemispheres-1024x488.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2016\/03\/mars-gravity-hemispheres-1024x488.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2016\/03\/mars-gravity-hemispheres-1024x488.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2016\/03\/mars-gravity-hemispheres-1024x488.jpg?resize=700%2C400 2x"},"classes":[]},{"id":1838783,"url":"https:\/\/www.maproomblog.com\/2025\/04\/seafloor-features-mapped-by-satellite\/","url_meta":{"origin":4874,"position":2},"title":"Seafloor Features Mapped by Satellite","author":"Jonathan Crowe","date":"1 April 2025","format":"link","excerpt":"NASA Earth Observatory (Michala Garrison\/SWOT data) \u201cMapping the seafloor isn\u2019t the SWOT mission\u2019s primary purpose,\u201d says the JPL, and yet the\u00a0Surface Water and Ocean Topography (SWOT)\u00a0satellite is being used for more than measuring sea surface height: those ocean surface topography measurements can be used to infer features on the seafloor.\u2026","rel":"","context":"In "Oceans"","block_context":{"text":"Oceans","link":"https:\/\/www.maproomblog.com\/category\/oceans\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/04\/eo-seamounts-abyssal.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/04\/eo-seamounts-abyssal.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/04\/eo-seamounts-abyssal.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/04\/eo-seamounts-abyssal.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/04\/eo-seamounts-abyssal.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/04\/eo-seamounts-abyssal.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":5566,"url":"https:\/\/www.maproomblog.com\/2013\/02\/lunar-gravity-map\/","url_meta":{"origin":4874,"position":3},"title":"Lunar Gravity Map","author":"Jonathan Crowe","date":"11 February 2013","format":"link","excerpt":"NASA has released a free-air gravity map of the Moon: \"If the Moon were a perfectly smooth sphere of uniform density, the gravity map would be a single, featureless color, indicating that the force of gravity at a given elevation was the same everywhere. But like other rocky bodies in\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/www.maproomblog.com\/category\/astronomy\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1813940,"url":"https:\/\/www.maproomblog.com\/2023\/04\/a-martian-mosaic-at-five-metres-per-pixel\/","url_meta":{"origin":4874,"position":4},"title":"A Martian Mosaic at Five Metres per Pixel","author":"Jonathan Crowe","date":"12 April 2023","format":"link","excerpt":"The Global CTX Mosaic of Mars, produced by CalTech\u2019s Bruce Murray Laboratory for Planetary Visualization, is a 5.7-terapixel mosaic of the Martian surface at a resolution of five metres per pixel. The mosaic is available in a number of different formats (via ArcGIS Online, KML, shapefiles), as well as via\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/www.maproomblog.com\/category\/astronomy\/"},"img":{"alt_text":"Global CTX Mosaic of Mars (screenshot)","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/04\/global-ctx-mosaic-mars-1024x576.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/04\/global-ctx-mosaic-mars-1024x576.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/04\/global-ctx-mosaic-mars-1024x576.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/04\/global-ctx-mosaic-mars-1024x576.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1809733,"url":"https:\/\/www.maproomblog.com\/2022\/11\/mapping-the-shoreline-of-an-ancient-martian-ocean\/","url_meta":{"origin":4874,"position":5},"title":"Mapping the Shoreline of an Ancient Martian Ocean","author":"Jonathan Crowe","date":"7 November 2022","format":"link","excerpt":"\u201cA recently released set of topography maps provides new evidence for an ancient northern ocean on Mars. The maps offer the strongest case yet that the planet once experienced sea-level rise consistent with an extended warm and wet climate, not the harsh, frozen landscape that exists today.\u201d Press release, video,\u2026","rel":"","context":"In "Astronomy"","block_context":{"text":"Astronomy","link":"https:\/\/www.maproomblog.com\/category\/astronomy\/"},"img":{"alt_text":"3D map showing evidence of ancient Martian shoreline","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/mars-ancient-ocean-1024x564.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/mars-ancient-ocean-1024x564.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/mars-ancient-ocean-1024x564.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/11\/mars-ancient-ocean-1024x564.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/4874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=4874"}],"version-history":[{"count":2,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/4874\/revisions"}],"predecessor-version":[{"id":4877,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/4874\/revisions\/4877"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=4874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=4874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=4874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}