Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Bianca Maria Poggianti
Galaxy formation and evolution
Observational cosmology
Metrics
H-Index
i10 Index
Citation
81
232
22,188
* Rankings
Ranking Based On Selection: 4
Ricardo Carrera
Galactic archaeology
open cluster
Magellanic clouds
Metrics
H-Index
i10 Index
Citation
55
85
16,863
* Rankings
Ranking Based On Selection: 5
Daniela Bettoni
galaxy dynamics
cluster of galaxies
early type galaxies
Metrics
H-Index
i10 Index
Citation
55
122
8,591
* Rankings
Ranking Based On Selection: 6
Federico Tosi
Planetary Science
Astronomy
Remote Sensing
Scientific Computing
Space Missions
Metrics
H-Index
i10 Index
Citation
53
166
10,220
* Rankings
Ranking Based On Selection: 8
Gianrico Filacchione
Planetary science
Astronomy
VIS-IR Spectroscopy
Remote Sensing
Instrumentation
Metrics
H-Index
i10 Index
Citation
52
144
8,839

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* Rankings
Ranking Based On Selection: 11
Roberto Ragazzoni
Astronomical instrumentation - Adaptive Optics - Exoplanets
Metrics
H-Index
i10 Index
Citation
51
229
13,084
* Rankings
Ranking Based On Selection: 14
Michele Perna
Galaxy Formation & Evolution
Active Galactic Nuclei (AGN)
AGN and stellar feedback
Metrics
H-Index
i10 Index
Citation
41
77
5,832
* Rankings
Ranking Based On Selection: 16
Diego Turrini
Planetary Science
Planetary Formation
Exoplanets
Scientific Computing
Space Missions
Metrics
H-Index
i10 Index
Citation
38
84
5,137
* Rankings
Ranking Based On Selection: 17
Alessandro Frigeri
Planetary Science
Geology
Remote Sensing
Data Science
GIS
Metrics
H-Index
i10 Index
Citation
37
88
6,960
* Rankings
Ranking Based On Selection: 22
Francesca Zambon
Planetary science
spectroscopy
remote sensing
Dawn
BepiColombo
Metrics
H-Index
i10 Index
Citation
32
63
3,970
* Rankings
Ranking Based On Selection: 24
Alice Lucchetti
planetary science
space exploration
Solar System
impact cratering
astronomy
Metrics
H-Index
i10 Index
Citation
26
67
2,651
* Rankings
Ranking Based On Selection: 25
Giustina Vietri
Galaxy formation and evolution
Active Galactic Nuclei (AGN)
AGN feedback
Metrics
H-Index
i10 Index
Citation
23
33
2,554
* Rankings
Ranking Based On Selection: 26
Matteo Genoni
Astrofisica
Strumentazione Astronomica
Ottica
Ingeneria
Metrics
H-Index
i10 Index
Citation
23
45
2,300
* Rankings
Ranking Based On Selection: 27
Filippo Marcello Maccagni
Astronomy
Radioastronomy
Active Galactic Nuclei
Neutral Hydrogen
Metrics
H-Index
i10 Index
Citation
18
25
999
* Rankings
Ranking Based On Selection: 28
Kalyan Kumar Radhakrishnan Santhakumari|Kalyan Radhakrishnan
Adaptive Optics
Astronomical Instrumentation
Optics
Young Stellar Objects and Star Formation
etc
Metrics
H-Index
i10 Index
Citation
14
32
778
* Rankings
Ranking Based On Selection: 29
Simone De Angelis
Planetary Sciences
VIS-IR spectroscopy
Planetary Analogues
Meteorites
Metrics
H-Index
i10 Index
Citation
14
24
678
* Rankings
Ranking Based On Selection: 30
Davide Greggio
astronomy
optical design
planetary sciences
adaptive optics
Metrics
H-Index
i10 Index
Citation
14
21
697
Rankings
Ranking Based On Selection: 1
Bianca Maria Poggianti
Metrics
H-Index
i10 Index
Citation Counts
81
232
22,188
Galaxy formation and evolution
Observational cosmology
Rankings
Ranking Based On Selection: 2
Fabrizio Capaccioni
Metrics
H-Index
i10 Index
Citation Counts
65
167
16,612
Rankings
Ranking Based On Selection: 3
Alberto Cellino
Metrics
H-Index
i10 Index
Citation Counts
60
211
38,568
Rankings
Ranking Based On Selection: 4
Ricardo Carrera
Metrics
H-Index
i10 Index
Citation Counts
55
85
16,863
Galactic archaeology
open cluster
Magellanic clouds
Rankings
Ranking Based On Selection: 5
Daniela Bettoni
Metrics
H-Index
i10 Index
Citation Counts
55
122
8,591
galaxy dynamics
cluster of galaxies
early type galaxies
Rankings
Ranking Based On Selection: 6
Federico Tosi
Metrics
H-Index
i10 Index
Citation Counts
53
166
10,220
Planetary Science
Astronomy
Remote Sensing
Scientific Computing
Space Missions
Rankings
Ranking Based On Selection: 7
Giancarlo Bellucci
Metrics
H-Index
i10 Index
Citation Counts
53
123
11,421
Rankings
Ranking Based On Selection: 8
Gianrico Filacchione
Metrics
H-Index
i10 Index
Citation Counts
52
144
8,839
Planetary science
Astronomy
VIS-IR Spectroscopy
Remote Sensing
Instrumentation
Rankings
Ranking Based On Selection: 9
Maria Teresa Capria
Metrics
H-Index
i10 Index
Citation Counts
52
139
9,637
Rankings
Ranking Based On Selection: 10
Diego Bossini
Metrics
H-Index
i10 Index
Citation Counts
51
79
27,691

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Roberto Ragazzoni
Metrics
H-Index
i10 Index
Citation Counts
51
229
13,084
Astronomical instrumentation - Adaptive Optics - Exoplanets
Rankings
Ranking Based On Selection: 12
Roberto Orosei
Metrics
H-Index
i10 Index
Citation Counts
47
102
8,345
Rankings
Ranking Based On Selection: 13
Davide Grassi
Metrics
H-Index
i10 Index
Citation Counts
43
107
7,129
Rankings
Ranking Based On Selection: 14
Michele Perna
Metrics
H-Index
i10 Index
Citation Counts
41
77
5,832
Galaxy Formation & Evolution
Active Galactic Nuclei (AGN)
AGN and stellar feedback
Rankings
Ranking Based On Selection: 15
Mario Di Martino
Metrics
H-Index
i10 Index
Citation Counts
39
103
4,493
Rankings
Ranking Based On Selection: 16
Diego Turrini
Metrics
H-Index
i10 Index
Citation Counts
38
84
5,137
Planetary Science
Planetary Formation
Exoplanets
Scientific Computing
Space Missions
Rankings
Ranking Based On Selection: 17
Alessandro Frigeri
Metrics
H-Index
i10 Index
Citation Counts
37
88
6,960
Planetary Science
Geology
Remote Sensing
Data Science
GIS
Rankings
Ranking Based On Selection: 18
Lorenzo Lovisari
Metrics
H-Index
i10 Index
Citation Counts
35
57
4,260
Rankings
Ranking Based On Selection: 19
Enrico Pinna
Metrics
H-Index
i10 Index
Citation Counts
35
94
4,532
Rankings
Ranking Based On Selection: 20
Giovanni Catanzaro
Metrics
H-Index
i10 Index
Citation Counts
35
76
4,736
Rankings
Ranking Based On Selection: 21
Alessio Traficante
Metrics
H-Index
i10 Index
Citation Counts
32
60
4,471
Rankings
Ranking Based On Selection: 22
Francesca Zambon
Metrics
H-Index
i10 Index
Citation Counts
32
63
3,970
Planetary science
spectroscopy
remote sensing
Dawn
BepiColombo
Rankings
Ranking Based On Selection: 23
Alessandro Baldi
Metrics
H-Index
i10 Index
Citation Counts
32
49
3,925
Rankings
Ranking Based On Selection: 24
Alice Lucchetti
Metrics
H-Index
i10 Index
Citation Counts
26
67
2,651
planetary science
space exploration
Solar System
impact cratering
astronomy
Rankings
Ranking Based On Selection: 25
Giustina Vietri
Metrics
H-Index
i10 Index
Citation Counts
23
33
2,554
Galaxy formation and evolution
Active Galactic Nuclei (AGN)
AGN feedback
Rankings
Ranking Based On Selection: 26
Matteo Genoni
Metrics
H-Index
i10 Index
Citation Counts
23
45
2,300
Astrofisica
Strumentazione Astronomica
Ottica
Ingeneria
Rankings
Ranking Based On Selection: 27
Filippo Marcello Maccagni
Metrics
H-Index
i10 Index
Citation Counts
18
25
999
Astronomy
Radioastronomy
Active Galactic Nuclei
Neutral Hydrogen
Rankings
Ranking Based On Selection: 28
Adaptive Optics
Astronomical Instrumentation
Optics
Young Stellar Objects and Star Formation
etc
Rankings
Ranking Based On Selection: 29
Simone De Angelis
Metrics
H-Index
i10 Index
Citation Counts
14
24
678
Planetary Sciences
VIS-IR spectroscopy
Planetary Analogues
Meteorites
Rankings
Ranking Based On Selection: 30
Davide Greggio
Metrics
H-Index
i10 Index
Citation Counts
14
21
697
astronomy
optical design
planetary sciences
adaptive optics
Rankings
Ranking Based On Selection: 31
Salvatore Savarese
Metrics
H-Index
i10 Index
Citation Counts
11
11
430
Rankings
Ranking Based On Selection: 32
Cristina Re
Metrics
H-Index
i10 Index
Citation Counts
11
19
623