{"688902":{"#nid":"688902","#data":{"type":"news","title":"3.8\u2011Billion\u2011Year\u2011Old Titanium Clue Sheds New Light on the Moon\u2019s Early Chemistry","body":[{"value":"\u003Cp dir=\u0022ltr\u0022\u003EA chemical signature hidden in a 3.8\u2011billion\u2011year\u2011old lunar rock is offering new insights into the availability of oxygen within the young Moon.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EPublished today in the journal\u0026nbsp;\u003Cem\u003ENature Communications,\u0026nbsp;\u003C\/em\u003Ethe paper \u201c\u003Ca href=\u0022https:\/\/www.nature.com\/articles\/s41467-026-69770-w\u0022\u003ETrivalent Titanium in High-Titanium Lunar Ilmenite\u003C\/a\u003E\u201d confirms titanium in a reduced, trivalent state in a black, metal-rich lunar mineral called\u0026nbsp;\u003Cem\u003Eilmenite\u003C\/em\u003E. It\u2019s a state only possible in low-oxygen environments, conditions researchers refer to as \u201creducing.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cModels have suggested that these reducing conditions may have varied at different locations and times across the surface of the Moon,\u201d says lead author\u0026nbsp;\u003Ca href=\u0022https:\/\/physics.gatech.edu\/user\/advik-vira\u0022\u003E\u003Cstrong\u003EAdvik Vira\u003C\/strong\u003E\u003C\/a\u003E, a graduate student in the\u0026nbsp;\u003Ca href=\u0022https:\/\/physics.gatech.edu\/\u0022\u003ESchool of Physics\u003C\/a\u003E who recently earned his doctoral degree. \u201cWe hope our microscopy technique can be a valuable step in mapping and understanding the Moon\u2019s 4.5-billion-year history.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EThe team anticipates that their technique could be used on many of the lunar samples collected more than 50 years ago by the Apollo missions in addition to the\u0026nbsp;\u003Ca href=\u0022https:\/\/science.nasa.gov\/lunar-science\/programs\/angsa\/\u0022\u003EApollo Next Generation Samples\u003C\/a\u003E \u2014 a group of lunar samples that have been stored under pristine conditions \u2014 and new samples from the planned\u0026nbsp;\u003Ca href=\u0022https:\/\/www.nasa.gov\/mission\/artemis-ii\/\u0022\u003EArtemis missions\u003C\/a\u003E, with Artemis II slated for launch this spring. The technique might also be applicable to samples collected from the far side of the Moon and returned in 2024 by the\u0026nbsp;\u003Ca href=\u0022https:\/\/www.planetary.org\/space-missions\/change-6\u0022\u003EChang\u2019e-6 mission\u003C\/a\u003E.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cThe Moon holds clues not only to its own past, but also to the earliest eras of Earth\u2019s evolution \u2014 history that has long since been erased from our planet,\u201d Vira says. \u201cThis study is a step toward understanding the history of both and a reminder that there is still so much left to learn from the lunar rocks we\u2019ve brought back to Earth.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EThe School of Physics research team included corresponding authors Vira and Professor\u0026nbsp;\u003Ca href=\u0022https:\/\/physics.gatech.edu\/user\/phillip-first\u0022\u003E\u003Cstrong\u003EPhillip First\u003C\/strong\u003E\u003C\/a\u003E; in addition to graduate student\u0026nbsp;\u003Cstrong\u003ERoshan Trivedi\u003C\/strong\u003E; undergraduate students\u0026nbsp;\u003Cstrong\u003EGabriella Dotson, Keyes Eames\u003C\/strong\u003E,\u0026nbsp;\u003Cstrong\u003EDean Kim,\u0026nbsp;\u003C\/strong\u003Eand\u003Cstrong\u003E Emma Livernois\u003C\/strong\u003E; and Professor\u0026nbsp;\u003Ca href=\u0022https:\/\/physics.gatech.edu\/user\/zhigang-jiang\u0022\u003E\u003Cstrong\u003EZhigang Jiang\u003C\/strong\u003E\u003C\/a\u003E, along with Institute for Matter and Systems Materials Characterization Facility Senior Research Scientist\u0026nbsp;\u003Ca href=\u0022https:\/\/matter-systems.research.gatech.edu\/people\/mengkun-tian\u0022\u003E\u003Cstrong\u003EMengkun Tian\u003C\/strong\u003E\u003C\/a\u003E;\u0026nbsp;\u003Ca href=\u0022https:\/\/chemistry.gatech.edu\/\u0022\u003ESchool of Chemistry and Biochemistry\u003C\/a\u003E Senior Research Scientist\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003E\u003Ca href=\u0022https:\/\/chemistry.gatech.edu\/people\/brant-m-jones\u0022\u003E\u003Cstrong\u003EBrant Jones\u003C\/strong\u003E\u003C\/a\u003E and\u0026nbsp;\u003Ca href=\u0022https:\/\/chemistry.gatech.edu\/people\/thomas-orlando\u0022\u003E\u003Cstrong\u003EThom Orlando\u003C\/strong\u003E\u003C\/a\u003E\u003Cstrong\u003E,\u0026nbsp;\u003C\/strong\u003ERegents\u0027 Professor in the School of Chemistry and Biochemistry with a joint appointment in the School of Physics.\u0026nbsp;\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EThe Georgia Tech team was joined by\u0026nbsp;\u003Ca href=\u0022https:\/\/addisenergy.com\/\u0022\u003EAddis Energy\u003C\/a\u003E Senior Geochemist\u0026nbsp;\u003Cstrong\u003EKatherine Burgess\u003C\/strong\u003E; Macalester College Assistant Professor of Geology\u0026nbsp;\u003Ca href=\u0022https:\/\/www.macalester.edu\/geology\/facultystaff\/emily-first\/\u0022\u003E\u003Cstrong\u003EEmily First\u003C\/strong\u003E\u003C\/a\u003E; along with\u0026nbsp;\u003Ca href=\u0022https:\/\/www.lbl.gov\/\u0022\u003ELawrence Berkeley National Laboratory\u003C\/a\u003E Research Scientist\u0026nbsp;\u003Ca href=\u0022https:\/\/energygeosciences.lbl.gov\/profile\/hlisabeth\/\u0022\u003E\u003Cstrong\u003EHarrison Lisabeth\u003C\/strong\u003E\u003C\/a\u003E, Senior Scientist\u0026nbsp;\u003Ca href=\u0022https:\/\/als.lbl.gov\/people\/nobumichi-tamura\/\u0022\u003E\u003Cstrong\u003ENobumichi Tamura\u003C\/strong\u003E\u003C\/a\u003E\u003Cstrong\u003E,\u0026nbsp;\u003C\/strong\u003Eand\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003EPostdoctoral Fellow\u0026nbsp;\u003Cstrong\u003ETyler Farr,\u0026nbsp;\u003C\/strong\u003Ewho recently earned a Ph.D. from Georgia Tech\u2019s\u0026nbsp;\u003Ca href=\u0022https:\/\/www.me.gatech.edu\/\u0022\u003EGeorge W. Woodruff School of Mechanical Engineering\u003C\/a\u003E.\u003C\/p\u003E\u003Ch3 dir=\u0022ltr\u0022\u003E\u003Cstrong\u003ECLEVER research\u003C\/strong\u003E\u003C\/h3\u003E\u003Cp dir=\u0022ltr\u0022\u003EThe investigation began with a dark gray rock called a lunar basalt. Formed when ancient magma erupted on the Moon\u2019s surface, minerals crystallized as it cooled \u2014 preserving key information in their structures. Billions of years later, the rock was brought to Earth by the 1972 Apollo 17 mission, where a small piece is now stored at Georgia Tech\u2019s\u0026nbsp;\u003Ca href=\u0022http:\/\/clever.research.gatech.edu\/\u0022\u003ECenter for Lunar Environment and Volatile Exploration Research (CLEVER)\u003C\/a\u003E, a NASA Solar System Exploration Research Virtual Institute (SSERVI) center led by Orlando.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EAs a NASA virtual institute, CLEVER supports researchers exploring lunar conditions and developing tools for the upcoming crewed Artemis missions, and provided the lunar samples for this research. The SSERVI also plays a critical role in training the next generation of planetary researchers: both Vira and Farr earned their Ph.D.s while on the CLEVER team.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cAt CLEVER, we are very interested in understanding the impacts of space weathering,\u201d Vira says. \u201cWe implemented modern\u0026nbsp;sample preparation and advanced microscopy techniques\u0026nbsp;to image samples at the atomic level, and were curious to apply it more broadly to the collection of Apollo rocks in the Orlando Lab. This sample caught our attention.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cWhen we imaged an ilmenite crystal from the lunar basalt, what struck us first was how uniform and perfect the crystal structure was,\u201d he recalls. \u201cWe found no defects from space weathering and instead saw an undamaged, pristine crystal \u2014 undisturbed for 3.8 billion years.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003ETo investigate further, the team analyzed small chips of the rock with Burgess,\u003Cstrong\u003E\u0026nbsp;\u003C\/strong\u003Ea member of the RISE2 SSERVI team and then a geologist at the\u0026nbsp;\u003Ca href=\u0022https:\/\/www.nrl.navy.mil\/\u0022\u003EU.S. Naval Research Laboratory\u003C\/a\u003E. Using state-of-the-art electron microscopy and spectroscopy techniques, Vira determined the oxidation state of the elements in the ilmenite\u003Cem\u003E\u0026nbsp;\u003C\/em\u003Epresent.\u0026nbsp;\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EIn spectroscopy measurements, each element leaves a distinct \u2018signature,\u2019 Vira explains. \u201cWhen we brought our results back to Georgia Tech\u2019s\u0026nbsp;\u003Ca href=\u0022https:\/\/matter-systems.research.gatech.edu\/mcf\/materials-characterization-facility\u0022\u003EMaterials Characterization Facility\u003C\/a\u003E, Mengkun (Tian) noticed something unusual: the signature showed titanium might be present in the trivalent state.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EThe presence of trivalent titanium had long been suspected in this lunar mineral. The team was intrigued.\u0026nbsp;\u003C\/p\u003E\u003Ch3 dir=\u0022ltr\u0022\u003E\u003Cstrong\u003EA new window into old rocks\u003C\/strong\u003E\u003C\/h3\u003E\u003Cp dir=\u0022ltr\u0022\u003EWith funding from Georgia Tech\u2019s\u0026nbsp;\u003Ca href=\u0022https:\/\/www.cstar.gatech.edu\/\u0022\u003ECenter for Space Technology and Research (CSTAR)\u003C\/a\u003E, Vira returned to the U.S. Naval Research Laboratory to analyze additional samples. The results confirmed that more titanium was present than the mineral\u2019s formula (FeTiO\u2083) predicts \u2014 indicating a portion of the titanium present was trivalent.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cThat led me to place our measurements in terms of the broader geological context,\u201d Vira shares. Working with First, Vira explored how ilmenite with trivalent titanium could help reconstruct the nature of ancient magmas from the Moon, especially the chemical availability of oxygen.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cBecause its location on the Moon was noted during the Apollo mission, we know exactly where this rock is from, and we can determine how old the rock is,\u201d he explains. \u201cWhen coupled with our trivalent titanium measurements, we can use that information to estimate the reducing conditions for this specific region at the specific time our rock formed.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003EIf the upcoming Artemis missions return samples suitable for the team\u2019s technique, these rocks could provide a new window into ancient lunar geology. The research also highlights that many lunar samples already on Earth could be reexamined to look for trivalent titanium.\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u201cThere is still so much to learn from the lunar samples we have already brought to Earth,\u201d Vira says. \u201cIt\u2019s a testament to the long-term value of each sample return mission. As technology continues to advance, this type of work will continue to give us critical insights into our planet and our place in the universe for years to come.\u201d\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u0026nbsp;\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u003Cem\u003E\u003Cstrong\u003EDOI\u003C\/strong\u003E: \u003C\/em\u003E\u003Ca href=\u0022https:\/\/www.nature.com\/articles\/s41467-026-69770-w\u0022\u003E\u003Cem\u003E10.1038\/s41467-026-69770-w\u003C\/em\u003E\u003C\/a\u003E\u003C\/p\u003E\u003Cp dir=\u0022ltr\u0022\u003E\u003Cem\u003E\u003Cstrong\u003EFunding\u003C\/strong\u003E: This work was directly supported by the NASA SSERVI under CLEVER. Researchers were also supported by the NASA RISE2 SSERVI and the Heising-Simons Foundation. Funding for collaborations between the U.S. Naval Research Laboratory and Georgia Tech for the investigation of lunar minerals was provided by the Georgia Tech Center for Space Technology and Research. Sample preparation was performed at the Georgia Tech Institute for Matter and Systems, which is supported by the National Science Foundation. This work utilized the resources of the Advanced Light Source, a user facility supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, and was supported in part by previous breakthroughs obtained through the Laboratory Direct.\u003C\/em\u003E\u003C\/p\u003E","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EThe finding offers new clues about the oxygen conditions that shaped the Moon\u2019s early environment.\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"The finding offers new clues about the oxygen conditions that shaped the Moon\u2019s early environment."}],"uid":"35599","created_gmt":"2026-03-12 18:40:17","changed_gmt":"2026-03-27 14:09:07","author":"sperrin6","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":{"679604":{"id":"679604","type":"image","title":"Taken aboard Apollo 8 by Bill Anders, this iconic picture shows Earth peeking out from beyond the lunar surface as the first crewed spacecraft circumnavigated the Moon, with astronauts Anders, Frank Borman, and Jim Lovell aboard. (Credit: NASA)","body":"\u003Cp\u003ETaken aboard Apollo 8 by Bill Anders, this iconic picture shows Earth peeking out from beyond the lunar surface as the first crewed spacecraft circumnavigated the Moon, with astronauts Anders, Frank Borman, and Jim Lovell aboard. (Credit: NASA)\u003C\/p\u003E","created":"1773340129","gmt_created":"2026-03-12 18:28:49","changed":"1774620147","gmt_changed":"2026-03-27 14:02:27","alt":"Earth peeking out from beyond the lunar surface.","file":{"fid":"263785","name":"Screenshot-2026-03-12-at-11.32.02-AM_0.png","image_path":"\/sites\/default\/files\/2026\/03\/12\/Screenshot-2026-03-12-at-11.32.02-AM_0.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/03\/12\/Screenshot-2026-03-12-at-11.32.02-AM_0.png","mime":"image\/png","size":884051,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/03\/12\/Screenshot-2026-03-12-at-11.32.02-AM_0.png?itok=MbOCiQtk"}},"679608":{"id":"679608","type":"image","title":"Advik Vira","body":"\u003Cp\u003EAdvik Vira\u003C\/p\u003E","created":"1773340703","gmt_created":"2026-03-12 18:38:23","changed":"1773340750","gmt_changed":"2026-03-12 18:39:10","alt":"Advik Vira. He is wearing a colorful science-print button up.","file":{"fid":"263789","name":"Vira-Headshot.jpg","image_path":"\/sites\/default\/files\/2026\/03\/12\/Vira-Headshot.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/03\/12\/Vira-Headshot.jpg","mime":"image\/jpeg","size":341274,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/03\/12\/Vira-Headshot.jpg?itok=ogP_wqEd"}},"679610":{"id":"679610","type":"image","title":"An illustration\u00a0of the Apollo rock 75035\u00a0on the Moon, an atomic image of the sample, and its spectral signature.\u00a0(Credit: August Davis)","body":"\u003Cp\u003EAn illustration\u0026nbsp;of the Apollo rock 75035\u0026nbsp;on the Moon, an atomic image of the sample, and its spectral signature.\u0026nbsp;(Credit: August Davis)\u003C\/p\u003E","created":"1773350645","gmt_created":"2026-03-12 21:24:05","changed":"1774620172","gmt_changed":"2026-03-27 14:02:52","alt":"A figure showing moon rocks, a magnifying glass showing the internal structure, with a green wavy line emitting from the rock.","file":{"fid":"263792","name":"feature-image-suggestion--1-.png","image_path":"\/sites\/default\/files\/2026\/03\/12\/feature-image-suggestion--1-.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/03\/12\/feature-image-suggestion--1-.png","mime":"image\/png","size":752836,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/03\/12\/feature-image-suggestion--1-.png?itok=wx3iLDkB"}},"679606":{"id":"679606","type":"image","title":"An optical image of the chip\u00a0from the lunar\u00a0rock\u00a0the team investigated.","body":"\u003Cp\u003EAn optical image of the chip\u0026nbsp;from the lunar\u0026nbsp;rock\u0026nbsp;the team investigated.\u003C\/p\u003E","created":"1773340509","gmt_created":"2026-03-12 18:35:09","changed":"1774620185","gmt_changed":"2026-03-27 14:03:05","alt":"A chip of the lunar sample.","file":{"fid":"263787","name":"optical-image-75035.png","image_path":"\/sites\/default\/files\/2026\/03\/12\/optical-image-75035.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/03\/12\/optical-image-75035.png","mime":"image\/png","size":284379,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/03\/12\/optical-image-75035.png?itok=7TX3fZrH"}},"679607":{"id":"679607","type":"image","title":"An image of the chip from the sample, imaged using scanning electron microscopy. Titanium is shown in light blue, and white boxes show areas where\u00a0samples\u00a0were\u00a0extracted\u00a0to analyze the\u00a0ilmenite\u00a0crystal.","body":"\u003Cp\u003EAn image of the chip from the sample, imaged using scanning electron microscopy. Titanium is shown in light blue, and white boxes show areas where\u0026nbsp;samples\u0026nbsp;were\u0026nbsp;extracted\u0026nbsp;to analyze the\u0026nbsp;ilmenite\u0026nbsp;crystal.\u003C\/p\u003E","created":"1773340593","gmt_created":"2026-03-12 18:36:33","changed":"1774620199","gmt_changed":"2026-03-27 14:03:19","alt":"The chip, colored in large areas with purple, with blue ribbons of color. There are a total of five white rectangles on the blue areas.","file":{"fid":"263791","name":"SEM-image-75035.png","image_path":"\/sites\/default\/files\/2026\/03\/12\/SEM-image-75035.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2026\/03\/12\/SEM-image-75035.png","mime":"image\/png","size":5511950,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2026\/03\/12\/SEM-image-75035.png?itok=aaHnKhSw"}}},"media_ids":["679604","679608","679610","679606","679607"],"related_links":[{"url":"https:\/\/www.nature.com\/articles\/s41467-026-69770-w","title":"Trivalent titanium in high-titanium lunar ilmenite"}],"groups":[{"id":"1278","name":"College of Sciences"},{"id":"1188","name":"Research Horizons"},{"id":"85951","name":"School of Chemistry and Biochemistry"},{"id":"126011","name":"School of Physics"}],"categories":[{"id":"136","name":"Aerospace"},{"id":"141","name":"Chemistry and Chemical Engineering"},{"id":"150","name":"Physics and Physical Sciences"},{"id":"135","name":"Research"},{"id":"134","name":"Student and Faculty"},{"id":"8862","name":"Student Research"}],"keywords":[{"id":"187915","name":"go-researchnews"},{"id":"192252","name":"cos-planetary"},{"id":"192259","name":"cos-students"}],"core_research_areas":[{"id":"193653","name":"Georgia Tech Research Institute"},{"id":"39471","name":"Materials"},{"id":"193652","name":"Matter and Systems"},{"id":"193657","name":"Space Research Initiative"}],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EWritten by:\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022mailto:sperrin6@gatech.edu\u0022\u003E\u003Cstrong\u003ESelena Langner\u003C\/strong\u003E\u003C\/a\u003E\u003Cbr\u003ECollege of Sciences\u003Cbr\u003EGeorgia Institute of Technology\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}