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Earth Science

D-Index
78
Citations
18756
World Ranking
598
National Ranking
296

Overview

Conel M. O'd. Alexander is affiliated with the Carnegie Institution for Science in the United States and specializes primarily in Physics and Astronomy, with a focused expertise in Astronomy and Astrophysics. Their research portfolio extends into related subfields including Ecology, Geophysics, Atmospheric Science, and Nuclear and High Energy Physics.

Their scholarly work covers a broad range of topics centered on astro and planetary science, with significant contributions in planetary science and exploration. Other main topics addressed in their publications include isotope analysis in ecology, high-pressure geophysics and materials, stellar, planetary, and galactic studies, geological and geochemical analysis, and astrophysics and star formation studies.

Alexander has published extensively in several scientific venues. The most frequent publication venues for their work are:

  • Geochimica et Cosmochimica Acta
  • Meteoritics and Planetary Science
  • arXiv (Cornell University)
  • Science Advances
  • Nature Astronomy

Among their recent papers are:

  • Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites (2022, Science)
  • Asteroid (101955) Bennu in the laboratory: Properties of the sample collected by OSIRIS-REx (2024, Meteoritics and Planetary Science)
  • Ryugu's nucleosynthetic heritage from the outskirts of the Solar System (2022, Science Advances)
  • Abundant extraterrestrial amino acids in the primitive CM carbonaceous chondrite Asuka 12236 (2020, Meteoritics and Planetary Science)
  • Abundant ammonia and nitrogen-rich soluble organic matter in samples from asteroid (101955) Bennu (2025, Nature Astronomy)

Frequent collaborators in Alexander's research include:

  • L. R. Nittler
  • A. N. Nguyen
  • Martin Bizzarro
  • Frédéric Moynier
  • S. S. Russell

Best Publications

  • Comet 81P/Wild 2 under a microscope.

    Don Brownlee;Peter Tsou;Jérôme Aléon;Conel M O'd Alexander

  • The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets

    C. M. O’D. Alexander;R. Bowden;M. L. Fogel;K. T. Howard;K. T. Howard

  • Organics captured from comet 81P/Wild 2 by the Stardust spacecraft.

    Scott A. Sandford;Jérôme Aléon;Conel M. O. 'D. Alexander;Tohru Araki

  • The origin and evolution of chondrites recorded in the elemental and isotopic compositions of their macromolecular organic matter

    C.M.O’D. Alexander;M. Fogel;H. Yabuta;G.D. Cody

  • STELLAR SAPPHIRES: THE PROPERTIES AND ORIGINS OF PRESOLAR Al 2 O 3 IN METEORITES

    Larry R. Nittler;Larry R. Nittler;Conel M. O'd. Alexander;Conel M. O'd. Alexander;Xia Gao;Robert M. Walker

  • Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites

    Unknown

  • Interstellar chemistry recorded in organic matter from primitive meteorites

    Henner Busemann;Andrea F. Young;Conel M. O'd. Alexander;Peter Hoppe

  • NMR studies of chemical structural variation of insoluble organic matter from different carbonaceous chondrite groups

    George D. Cody;Conel M.O.’D. Alexander

  • The ancient heritage of water ice in the solar system.

    L. Ilsedore Cleeves;Edwin A. Bergin;Conel M. O. 'D. Alexander;Fujun Du

  • Interstellar oxide grains from the Tieschitz ordinary chondrite

    L. R. Nittler;C. M. O'd Alexander;X. Gao;R. M. Walker

  • The Formation Conditions of Chondrules and Chondrites

    C.M. O'd. Alexander;Jeffrey N. Grossman;D.S. Ebel;F.J. Ciesla

  • The classification of CM and CR chondrites using bulk H, C and N abundances and isotopic compositions

    Conel M. O. 'D. Alexander;Kieren T. Howard;Roxane Bowden;Marilyn L. Fogel

  • Contributors to chromium isotope variation of meteorites

    Liping Qin;Conel M. O. 'D. Alexander;Richard W. Carlson;Mary F. Horan

  • ALUMINUM-, CALCIUM-AND TITANIUM-RICH OXIDE STARDUST IN ORDINARY CHONDRITE METEORITES

    Larry R Nittler;Conel M O'd Alexander;Roberto Gallino;Roberto Gallino;Peter Hoppe

  • Organic thermometry for chondritic parent bodies

    G.D. Cody;C.M.O'd. Alexander;H. Yabuta;A.L.D. Kilcoyne

  • Establishing a molecular relationship between chondritic and cometary organic solids

    George D. Cody;Emily Heying;Conel M. O. Alexander;Larry R. Nittler

  • The microstructure of Semarkona and Bishunpur

    C.M.O'd Alexander;D.J Barber;R Hutchison

  • Origin and Evolution of Prebiotic Organic Matter As Inferred from the Tagish Lake Meteorite

    Christopher D. K. Herd;Alexandra Blinova;Danielle N. Simkus;Yongsong Huang

  • Classification of hydrous meteorites (CR, CM and C2 ungrouped) by phyllosilicate fraction: PSD-XRD modal mineralogy and planetesimal environments

    K. T. Howard;K. T. Howard;K. T. Howard;C. M. O. 'D. Alexander;D. L. Schrader;K. A. Dyl

  • The origin of chondritic macromolecular organic matter: a carbon and nitrogen isotope study.

    C. M. O'd. Alexander;C. M. O'd. Alexander;S. S. Russell;J. W. Arden;R. D. Ash;R. D. Ash

  • The Semarkona meteorite: First recorded occurrence of smectite in an ordinary chondrite, and its implications

    R. Hutchison;C.M.O. Alexander;D.J. barber

  • The nature, origin and modification of insoluble organic matter in chondrites, the major source of Earth's C and N

    C.M.O’D. Alexander;G.D. Cody;B.T. De Gregorio;L.R. Nittler

  • Deuterium enrichments in chondritic macromolecular material—Implications for the origin and evolution of organics, water and asteroids

    C.M.O’D. Alexander;S.D. Newsome;M.L. Fogel;L.R. Nittler

  • Solid-state ( 1 H and 13 C) nuclear magnetic resonance spectroscopy of insoluble organic residue in the Murchison meteorite: a self-consistent quantitative analysis

    G.D. Cody;C.M.O’D. Alexander;F. Tera

  • Origin of water and mantle-crust interactions on Mars inferred from hydrogen isotopes and volatile element abundances of olivine-hosted melt inclusions of primitive shergottites

    Tomohiro Usui;Conel M.O'd. Alexander;Jianhua Wang;Justin I. Simon

  • Chondrule formation in particle-rich nebular regions at least hundreds of kilometres across

    Jeffrey N. Cuzzi;Conel M. O'd. Alexander

  • The Compositional Structure of the Asteroid Belt

    Francesca E. DeMeo;Conel M. O'd. Alexander;Kevin J. Walsh;Clark R. Chapman

Frequent Co-Authors

Rhonda M. Stroud
Rhonda M. Stroud Arizona State University
George D. Cody
George D. Cody Carnegie Institution for Science
Marilyn L. Fogel
Marilyn L. Fogel University of California, Riverside
Michael J. Pellin
Michael J. Pellin Argonne National Laboratory
Richard W. Carlson
Richard W. Carlson Carnegie Institution for Science
Andrew M. Davis
Andrew M. Davis University of Chicago
Ian A. Franchi
Ian A. Franchi The Open University
Jason P. Dworkin
Jason P. Dworkin Goddard Space Flight Center
Amanda I. Karakas
Amanda I. Karakas Monash University
Christopher D. K. Herd
Christopher D. K. Herd University of Alberta

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