{"689379":{"#nid":"689379","#data":{"type":"news","title":"New Study Measures Titanium in Apollo Rock to Uncover Moon\u2019s Early\u00a0Chemistry","body":[{"value":"\u003Cdiv class=\u0022theconversation-article-body\u0022\u003E\u003Cp\u003EThe Earth and the Moon may look very different today, but they formed \u003Ca href=\u0022https:\/\/theconversation.com\/the-moon-might-be-older-than-scientists-previously-thought-a-new-study-shines-light-on-its-history-246085\u0022\u003Eunder similar conditions\u003C\/a\u003E in space. In fact, \u003Ca href=\u0022https:\/\/theconversation.com\/how-the-moon-formed-new-research-133204\u0022\u003Ea dominant hypothesis\u003C\/a\u003E says that the early Earth was hit by a Mars-sized object, and it was this giant impact that spun off material to form the Moon. But unlike Earth, the Moon lacks \u003Ca href=\u0022https:\/\/education.nationalgeographic.org\/resource\/plate-tectonics\/\u0022\u003Eplate tectonics\u003C\/a\u003E and \u003Ca href=\u0022https:\/\/theconversation.com\/climate-explained-why-carbon-dioxide-has-such-outsized-influence-on-earths-climate-123064\u0022\u003Ean atmosphere\u003C\/a\u003E capable of reshaping its surface and \u003Ca href=\u0022https:\/\/news.cornell.edu\/stories\/2021\/11\/recycling-tectonic-plates-key-driver-earths-oxygen-budget\u0022\u003Erecycling elements such as oxygen\u003C\/a\u003E over billions of years.\u003C\/p\u003E\u003Cp\u003EAs a result, the Moon preserves a record of the geological conditions that helped shape it and can give scientists insight into the world we live in today. Rocks that were formed during early volcanic activity on the Moon offer a window into events that occurred nearly 4 billion years ago. By uncovering the conditions under which the Moon\u2019s rocks formed, scientists move closer to understanding the origins of our own planet.\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/doi.org\/10.1038\/s41467-026-69770-w\u0022\u003EIn a study\u003C\/a\u003E published March 2026 in the journal Nature Communications, \u003Ca href=\u0022https:\/\/clever.research.gatech.edu\/the-team\/\u0022\u003Eour team of physicists and geoscientists\u003C\/a\u003E investigated \u003Ca href=\u0022https:\/\/www.webmineral.com\/data\/Ilmenite.shtml\u0022\u003Eilmenite\u003C\/a\u003E, a mineral composed of iron, titanium and oxygen, \u003Ca href=\u0022https:\/\/www.lpi.usra.edu\/lunar\/samples\/atlas\/compendium\/75035.pdf\u0022\u003Ein a Moon rock\u003C\/a\u003E crystallized from an ancient lunar magma. We used \u003Ca href=\u0022https:\/\/www.nrl.navy.mil\/nanoscience\/\u0022\u003Ecutting-edge electron microscopy\u003C\/a\u003E to probe the chemical signature of titanium in this ilmenite, finding that about 15% of the titanium carries less of an electrical charge than expected.\u003C\/p\u003E\u003Cfigure class=\u0022align-center \u0022\u003E\u003Cp\u003E\u003Cimg alt=\u0022An illustration of the rock on the Moon, an atomic image of the sample, and of trivalent titanium chemical signature.\u0022 src=\u0022https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=45\u0026amp;auto=format\u0026amp;w=754\u0026amp;fit=clip\u0022 srcset=\u0022https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=45\u0026amp;auto=format\u0026amp;w=600\u0026amp;h=265\u0026amp;fit=crop\u0026amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=30\u0026amp;auto=format\u0026amp;w=600\u0026amp;h=265\u0026amp;fit=crop\u0026amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=15\u0026amp;auto=format\u0026amp;w=600\u0026amp;h=265\u0026amp;fit=crop\u0026amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=45\u0026amp;auto=format\u0026amp;w=754\u0026amp;h=333\u0026amp;fit=crop\u0026amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=30\u0026amp;auto=format\u0026amp;w=754\u0026amp;h=333\u0026amp;fit=crop\u0026amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/726541\/original\/file-20260326-57-w0e8yb.png?ixlib=rb-4.1.0\u0026amp;q=15\u0026amp;auto=format\u0026amp;w=754\u0026amp;h=333\u0026amp;fit=crop\u0026amp;dpr=3 2262w\u0022 sizes=\u0022(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px\u0022\u003E\u003C\/p\u003E\u003Cfigcaption\u003E\u003Cspan class=\u0022caption\u0022\u003EThis illustration shows the rock on the Moon, as well as an atomic image of the sample\u2019s crystal structure and a representation of the chemical signature of trivalent titanium.\u003C\/span\u003E \u003Cspan class=\u0022attribution source\u0022\u003EAugust Davis\u003C\/span\u003E\u003C\/figcaption\u003E\u003C\/figure\u003E\u003Ch2\u003E\u0026nbsp;\u003C\/h2\u003E\u003Ch2\u003EImplications of Trivalent Titanium\u003C\/h2\u003E\u003Cp\u003EIn ilmenite, an atom of titanium typically loses four electrons when bonding with oxygen, resulting in a positive charge of 4+, known as the atom\u2019s \u003Ca href=\u0022https:\/\/www.britannica.com\/science\/oxidation-number\u0022\u003Eoxidation number\u003C\/a\u003E. From the sample we studied, a rock collected during the \u003Ca href=\u0022https:\/\/www.nasa.gov\/mission\/apollo-17\/\u0022\u003EApollo 17 mission\u003C\/a\u003E, we found that some of the \u003Ca href=\u0022https:\/\/www.britannica.com\/science\/titanium\/Compounds\u0022\u003Etitanium\u003C\/a\u003E in ilmenite actually has a charge of only 3+, referred to as trivalent titanium. Our measurement of trivalent titanium confirms what geologists had long suspected: that some titanium in lunar ilmenite exists in a lower charge state.\u003C\/p\u003E\u003Cp\u003ETrivalent titanium occurs only when \u003Ca href=\u0022https:\/\/www.elementsmagazine.org\/redox-engine-of-earth\/\u0022\u003Ethe amount of oxygen available for chemical reactions\u003C\/a\u003E is low. Thus, the abundance of trivalent titanium in ilmenite could tell us about the relative availability of oxygen in the Moon\u2019s interior when the rock formed, around 3.8 billion years ago.\u003C\/p\u003E\u003Ch2\u003EA Link to the Moon\u2019s Early Chemistry\u003C\/h2\u003E\u003Cp\u003EOur team has closely studied only one Moon rock so far, but from published studies we have identified more than 500 analyses of lunar ilmenite that could contain trivalent titanium. Studying these samples could reveal new details about how the Moon\u2019s chemistry varies across different locations and time periods.\u003C\/p\u003E\u003Cp\u003EWhile our work highlights a link based on prior studies, the relationship between trivalent titanium in ilmenite and oxygen availability has not yet been quantified with targeted experimental data.\u003C\/p\u003E\u003Cp\u003EBy conducting experiments that explore that link, ilmenite could reveal more details about the Moon\u2019s interior. We also expect this relationship to apply to other planets and asteroids that don\u2019t contain much chemically available oxygen, relative to Earth.\u003C\/p\u003E\u003Ch2\u003EWhat\u2019s Next?\u003C\/h2\u003E\u003Cp\u003EThese methods can be used to study many Moon rocks collected during the Apollo missions over 50 years ago, as well as future samples from upcoming \u003Ca href=\u0022https:\/\/www.nasa.gov\/mission\/artemis-ii\/\u0022\u003EArtemis missions\u003C\/a\u003E, or rocks collected from the far side of the Moon, returned in 2024 by China\u2019s \u003Ca href=\u0022https:\/\/www.planetary.org\/space-missions\/change-6\u0022\u003EChang\u2019e-6 mission\u003C\/a\u003E.\u003C\/p\u003E\u003Cp\u003EOne of \u003Ca href=\u0022https:\/\/emilyfirst.com\/\u0022\u003Eour team members\u003C\/a\u003E plans to use their \u003Ca href=\u0022https:\/\/emilyfirst.com\/research\/\u0022\u003Enew experimental lab\u003C\/a\u003E to explore how oxygen availability in magma affects the abundance of trivalent titanium in ilmenite. With experiments like this that build off our findings, we could potentially use ilmenite to reconstruct the history of ancient magmas from the Moon.\u003C\/p\u003E\u003Cp\u003EWe believe future studies of lunar rocks using advanced scientific methods are essential for revealing the chemical conditions present on the ancient Moon. They could offer clues not only to its own history but also to the earliest chapters of Earth\u2019s past \u2013 records that have since been erased from Earth.\u003C!-- Below is The Conversation\u0027s page counter tag. Please DO NOT REMOVE. --\u003E\u003Cimg style=\u0022border-color:!important;border-style:none;box-shadow:none !important;margin:0 !important;max-height:1px !important;max-width:1px !important;min-height:1px !important;min-width:1px !important;opacity:0 !important;outline:none !important;padding:0 !important;\u0022 src=\u0022https:\/\/counter.theconversation.com\/content\/278721\/count.gif?distributor=republish-lightbox-basic\u0022 alt=\u0022The Conversation\u0022 width=\u00221\u0022 height=\u00221\u0022 referrerpolicy=\u0022no-referrer-when-downgrade\u0022\u003E\u003C!-- End of code. If you don\u0027t see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https:\/\/theconversation.com\/republishing-guidelines --\u003E\u003C\/p\u003E\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cem\u003EThis article is republished from \u003C\/em\u003E\u003Ca href=\u0022https:\/\/theconversation.com\u0022\u003E\u003Cem\u003EThe Conversation\u003C\/em\u003E\u003C\/a\u003E\u003Cem\u003E under a Creative Commons license. Read the \u003C\/em\u003E\u003Ca href=\u0022https:\/\/theconversation.com\/new-study-measures-titanium-in-apollo-rock-to-uncover-moons-early-chemistry-278721\u0022\u003E\u003Cem\u003Eoriginal article\u003C\/em\u003E\u003C\/a\u003E\u003Cem\u003E.\u003C\/em\u003E\u003C\/p\u003E\u003C\/div\u003E","summary":"","format":"full_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EBy uncovering the conditions under which the Moon\u2019s rocks formed, scientists move closer to understanding the origins of our own planet.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"By uncovering the conditions under which the Moon\u2019s rocks formed, scientists move closer to understanding the origins of our own planet."}],"uid":"27469","created_gmt":"2026-03-27 13:21:18","changed_gmt":"2026-04-02 13:25:23","author":"Kristen Bailey","boilerplate_text":"","field_publication":"","field_article_url":"","location":"Atlanta, GA","dateline":{"date":"2026-03-27T00:00:00-04:00","iso_date":"2026-03-27T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"hg_media":{"679828":{"id":"679828","type":"image","title":"The Camelot crater in the Moon\u2019s Taurus-Littrow Valley is where the sample containing trivalent titanium was found. NASA\/Apollo 17: AS17-145-22159","body":"\u003Cp\u003EThe Camelot crater in the Moon\u2019s Taurus-Littrow Valley is where the sample containing trivalent titanium was found. \u003Ca href=\u0022https:\/\/www.flickr.com\/photos\/projectapolloarchive\/21041121594\u0022\u003ENASA\/Apollo 17: AS17-145-22159\u003C\/a\u003E\u003C\/p\u003E","created":"1775136177","gmt_created":"2026-04-02 13:22:57","changed":"1775136177","gmt_changed":"2026-04-02 13:22:57","alt":"The Camelot crater in the Moon\u2019s Taurus-Littrow Valley is where the sample containing trivalent titanium was found. NASA\/Apollo 17: AS17-145-22159","file":{"fid":"264032","name":"file-20260326-57-nv1xsh.jpg","image_path":"\/sites\/default\/files\/2026\/04\/02\/file-20260326-57-nv1xsh.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/04\/02\/file-20260326-57-nv1xsh.jpg","mime":"image\/jpeg","size":428208,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/04\/02\/file-20260326-57-nv1xsh.jpg?itok=vsNPr9q4"}}},"media_ids":["679828"],"related_links":[{"url":"https:\/\/theconversation.com\/new-study-measures-titanium-in-apollo-rock-to-uncover-moons-early-chemistry-278721","title":"Read This Article on The Conversation"}],"groups":[{"id":"1214","name":"News Room"},{"id":"1188","name":"Research Horizons"}],"categories":[],"keywords":[{"id":"187915","name":"go-researchnews"},{"id":"194974","name":"go-theconversation"}],"core_research_areas":[],"news_room_topics":[{"id":"71911","name":"Earth and Environment"}],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Ch5\u003EAuthor:\u003C\/h5\u003E\u003Cp\u003E\u003Ca href=\u0022https:\/\/theconversation.com\/profiles\/advik-d-vira-2626787\u0022\u003EAdvik D. Vira\u003C\/a\u003E, Graduate Student in Physics, \u003Ca href=\u0022https:\/\/theconversation.com\/institutions\/georgia-institute-of-technology-1310\u0022\u003E\u003Cem\u003EGeorgia Institute of Technology\u003C\/em\u003E\u003C\/a\u003E \u0026nbsp;\u003Cbr\u003E\u003Ca href=\u0022https:\/\/theconversation.com\/profiles\/emily-first-2633204\u0022\u003EEmily First\u003C\/a\u003E, Assistant Professor of Geology, \u003Ca href=\u0022https:\/\/theconversation.com\/institutions\/macalester-college-2632\u0022\u003E\u003Cem\u003EMacalester College\u003C\/em\u003E\u003C\/a\u003E\u003C\/p\u003E\u003Ch5\u003EMedia Contact:\u003C\/h5\u003E\u003Cp\u003EShelley Wunder-Smith\u003Cbr\u003E\u003Ca href=\u0022mailto:shelley.wunder-smith@research.gatech.edu\u0022\u003E\u003Cstrong\u003Eshelley.wunder-smith@research.gatech.edu\u003C\/strong\u003E\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}