The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Ralph E. Milliken sits on this spectrum.
This scientist: 405 publications — 95th percentile
95% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 603 publications or more.
The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Ralph E. Milliken sits on this spectrum.
This scientist: 67 D-Index — 87th percentile
87% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 106 D-Index or more.
Ralph E. Milliken is affiliated with Brown University in the United States. Their research focuses primarily on fields related to physics and astronomy, with a significant concentration on astronomy and astrophysics. Milliken's work extensively covers planetary science and exploration, astro and planetary science, isotope analysis in ecology, geological and geochemical analysis, space science and extraterrestrial life, high-pressure geophysics and materials, as well as geology and paleoclimatology research.
Milliken has published research in a variety of scientific venues, demonstrating engagement with both specialized and broad audiences. Frequent publication venues include Icarus, Journal of Geophysical Research Planets, Zenodo (CERN European Organization for Nuclear Research), Meteoritics and Planetary Science, and Geochimica et Cosmochimica Acta. This diverse range of journals indicates a multidisciplinary approach within planetary and geophysical sciences.
Collaborations form a notable part of Milliken's scholarly activities, with frequent coauthors including Tomoki Nakamura, M. Matsuoka, T. Hiroi, Shogo Tachibana, and Eri Tatsumi. These colleagues have collectively contributed to planetary geology, asteroid studies, and related disciplines.
Some recent papers authored in collaboration with others highlight the scope and focus of their research. These include:
The topics addressed in these works reflect planetary science themes such as asteroid composition and evolution, Mars mineralogy, water-rock interactions, and sample-return analysis. Milliken's involvement in studies of Ryugu and Bennu asteroids corresponds with broader efforts to understand solar system formation and evolution through direct sample analysis.
J. P. Grotzinger;D. Y. Sumner;L. C. Kah;K. Stack
John F. Mustard;Scott L. Murchie;S. M. Pelkey;B. L. Ehlmann
James W. Head;John F. Mustard;Mikhail A. Kreslavsky;Ralph E. Milliken
Bethany L. Ehlmann;John F. Mustard;Scott L. Murchie;Francois Poulet
Bethany L. Ehlmann;John F. Mustard;Gregg A. Swayze;Roger N. Clark
D.T. Vaniman;D.L. Bish;D.W. Ming;T.F. Bristow
J.P. Grotzinger;S. Gupta;M. C. Malin;D.M. Rubin
Scott L. Murchie;John F. Mustard;Bethany L. Ehlmann;Ralph E. Milliken
Shuai Li;Shuai Li;Paul G. Lucey;Ralph E. Milliken;Paul O. Hayne
R. E. Milliken;J. P. Grotzinger;B. J. Thomson
Jessica M. Sunshine;Tony L. Farnham;Lori M. Feaga;Olivier Groussin
Douglas W. Ming;P. D. Archer;D. P. Glavin;J. L. Eigenbrode
S. M. Pelkey;J. F. Mustard;S. Murchie;R. T. Clancy
Janice L. Bishop;Eldar Z Noe Dobrea;Nancy K. McKeown;Mario Parente
Ralph E. Milliken;Gregg A. Swayze;Raymond E. Arvidson;Janice L Bishop
Unknown
K. Kitazato;R. E. Milliken;T. Iwata;T. Iwata;M. Abe;M. Abe
B.J. Thomson;N.T. Bridges;R. Milliken;A. Baldridge
J. A. Hurowitz;J. P. Grotzinger;W. W. Fischer;S. M. McLennan
R. E. Milliken;J. F. Mustard;D. L. Goldsby
K. A. Farley;C. Malespin;P. Mahaffy;J. P. Grotzinger
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