Citation Rankings
Highly Cited Researchers
NASA Johnson Space Center Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
mars mineralogy
mars alteration
phyllosilicates
allophane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,270
7,850
0.640
* Total Citation Counts Rankings
Ranking Based On Selection :2
Mars
Planetary Science
Geochemistry
Carbonate
Stable Isotopes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,560
5,292
0.501
* Total Citation Counts Rankings
Ranking Based On Selection :3
Adaptation to weightlessness and partial gravity environments
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,148
3,020
0.728
* Total Citation Counts Rankings
Ranking Based On Selection :4
Prebiotic Chemistry
Meteorite Organics
Origins of Life
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,747
2,663
0.711
* Total Citation Counts Rankings
Ranking Based On Selection :5
Environmental Space Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,648
1,381
0.838
* Total Citation Counts Rankings
Ranking Based On Selection :6
Microbiology
microbial metal oxidation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,581
666
0.421
* Total Citation Counts Rankings
Ranking Based On Selection :7
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,521
1,510
0.993
* Total Citation Counts Rankings
Ranking Based On Selection :8
Probabilistic and deep generative models
uncertainty estimation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,275
643
0.504
* Total Citation Counts Rankings
Ranking Based On Selection :9
galactic cosmic radiation
ionizing radiation effects
astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,107
488
0.441
* Total Citation Counts Rankings
Ranking Based On Selection :10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,103
897
0.813
* Total Citation Counts Rankings
Ranking Based On Selection :11
teams
extreme environments
training
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,093
773
0.707
* Total Citation Counts Rankings
Ranking Based On Selection :12
Isotope geochemistry
Cosmochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
865
451
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :13
Space Weather
Computational Physics
Numerical analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
809
284
0.351
* Total Citation Counts Rankings
Ranking Based On Selection :14
organizational psychology
adult learning
self-regulation
motivation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
710
560
0.789
* Total Citation Counts Rankings
Ranking Based On Selection :15
Natural Language Processing
Graph Representation Learning
Machine Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
627
626
0.998
* Total Citation Counts Rankings
Ranking Based On Selection :16
Liquid Rocket Propulsion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
624
258
0.413
* Total Citation Counts Rankings
Ranking Based On Selection :17
Machine Learning
Natural Language Processing
Data-Centric AI
Large Language Models
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
622
615
0.989
* Total Citation Counts Rankings
Ranking Based On Selection :18
Machine Learning
Scientific Modeling
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
609
607
0.997
* Total Citation Counts Rankings
Ranking Based On Selection :19
Computer Vision
Social Computing
Deep Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
597
597
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :20
Raman
Raman Imaging
Astromaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
590
561
0.951
* Total Citation Counts Rankings
Ranking Based On Selection :21
computer systems
machine learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
584
582
0.997
* Total Citation Counts Rankings
Ranking Based On Selection :22
Machine Learning
Natural Language Processing
Language Models
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
567
566
0.998
* Total Citation Counts Rankings
Ranking Based On Selection :23
GaN
HFET
RF
Power
Photonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
554
450
0.812
* Total Citation Counts Rankings
Ranking Based On Selection :24
Health Informatics
Deep Learning
Natural Language Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
533
533
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :25
Machine learning
System optimization
Reliability
Lithium-Ion Battery
System safety
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525
525
1.000
* Total Citation Counts Rankings
Rankings
76,887
31,594
1
Ranking Based On Selection: 1
Elizabeth Rampe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,270
7,850
0.640
mars mineralogy
mars alteration
phyllosilicates
allophane
* Total Citation Counts Rankings
Rankings
92,166
37,023
2
Ranking Based On Selection: 2
Paul B Niles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,560
5,292
0.501
Mars
Planetary Science
Geochemistry
Carbonate
Stable Isotopes
* Total Citation Counts Rankings
Rankings
243,288
84,456
3
Ranking Based On Selection: 3
Stuart Mc Lee
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,148
3,020
0.728
Adaptation to weightlessness and partial gravity environments
* Total Citation Counts Rankings
Rankings
266,548
91,221
4
Ranking Based On Selection: 4
Aaron S Burton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,747
2,663
0.711
Prebiotic Chemistry
Meteorite Organics
Origins of Life
* Total Citation Counts Rankings
Rankings
502,474
156,037
5
Ranking Based On Selection: 5
Hang N Nguyen|Hang Ngoc Nguyen, Hang Nguyen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,648
1,381
0.838
Environmental Space Microbiology
* Total Citation Counts Rankings
Rankings
516,671
159,750
6
Ranking Based On Selection: 6
Richard Davis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,581
666
0.421
* Total Citation Counts Rankings
Rankings
529,644
163,214
7
Ranking Based On Selection: 7
Nihal Balani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,521
1,510
0.993
* Total Citation Counts Rankings
Rankings
590,786
179,051
8
Ranking Based On Selection: 8
Phillip Si
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,275
643
0.504
Probabilistic and deep generative models
uncertainty estimation
* Total Citation Counts Rankings
Rankings
641,198
191,939
9
Ranking Based On Selection: 9
Brandon Reddell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,107
488
0.441
galactic cosmic radiation
ionizing radiation effects
astrophysics
* Total Citation Counts Rankings
Rankings
642,282
192,196
10
Ranking Based On Selection: 10
Sarah Castro-Wallace
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,103
897
0.813
* Total Citation Counts Rankings
Rankings
645,674
193,022
11
Ranking Based On Selection: 11
Lauren Blackwell Landon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,093
773
0.707
* Total Citation Counts Rankings
Rankings
730,060
213,622
12
Ranking Based On Selection: 12
Rosalind Mg Armytage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
865
451
0.521
Isotope geochemistry
Cosmochemistry
* Total Citation Counts Rankings
Rankings
754,209
219,313
13
Ranking Based On Selection: 13
Tilaye Tadesse
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
809
284
0.351
* Total Citation Counts Rankings
Rankings
799,275
229,393
14
Ranking Based On Selection: 14
Sibley Lyndgaard
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
710
560
0.789
organizational psychology
adult learning
self-regulation
motivation
* Total Citation Counts Rankings
Rankings
841,019
238,509
15
Ranking Based On Selection: 15
Qingru Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
627
626
0.998
Natural Language Processing
Graph Representation Learning
Machine Learning
* Total Citation Counts Rankings
Rankings
842,978
238,937
16
Ranking Based On Selection: 16
John Charles Melcher Iv
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
624
258
0.413
* Total Citation Counts Rankings
Rankings
843,671
239,088
17
Ranking Based On Selection: 17
Yuchen Zhuang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
622
615
0.989
Machine Learning
Natural Language Processing
Data-Centric AI
Large Language Models
* Total Citation Counts Rankings
Rankings
850,584
240,567
18
Ranking Based On Selection: 18
Jiaming Cui
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
609
607
0.997
* Total Citation Counts Rankings
Rankings
856,995
241,955
19
Ranking Based On Selection: 19
Dheeraj Reddy Pailla
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
597
597
1.000
Computer Vision
Social Computing
Deep Learning
* Total Citation Counts Rankings
Rankings
860,760
242,724
20
Ranking Based On Selection: 20
Ryan Jakubek
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
590
561
0.951
Raman
Raman Imaging
Astromaterials
* Total Citation Counts Rankings
Rankings
864,032
243,404
21
Ranking Based On Selection: 21
Xiwen Zhang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
584
582
0.997
computer systems
machine learning
* Total Citation Counts Rankings
Rankings
873,444
245,455
22
Ranking Based On Selection: 22
Tarek Naous
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
567
566
0.998
Machine Learning
Natural Language Processing
Language Models
Artificial Intelligence
* Total Citation Counts Rankings
Rankings
880,864
246,987
23
Ranking Based On Selection: 23
Saiful Alam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
554
450
0.812
* Total Citation Counts Rankings
Rankings
892,766
249,454
24
Ranking Based On Selection: 24
Yuanda Zhu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
533
533
1.000
* Total Citation Counts Rankings
Rankings
897,544
250,376
25
Ranking Based On Selection: 25
Zhaoyi Xu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525
525
1.000
Machine learning
System optimization
Reliability
Lithium-Ion Battery
System safety