Search for Extraterrestrial Intelligence

Search for Extraterrestrial Intelligence

The search for extraterrestrial intelligence is an expression that refers to the diverse efforts and scientific projects intended to detect extraterrestrial signals, or any evidence of intelligent life beyond Earth. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for Search for Extraterrestrial Intelligence, United States, covering academic research published from 2000 to 2024. Read More.


Open Access Percentage

67%


Total
Publications

3.9K


Total Open
Publications

2.6K


Total
Citations

189K


Open Access
Percentage

67%


Total
Publications

3.9K


Total Open
Publications

2.6K


Total
Citations

189K

Wikipedia

Website

download

Breakdown

20% 39% 8% 33%

Publisher Open

20%

Both

39%

Other Platform Open

8%

Closed

33%

Percentage of Open Access over time

0%10%20%30%40%50%60%70%80%90%100%
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

050100150200250300Total Publications
2000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024

Open

Closed

Publisher Open

62%OA Journal

OA Journal 62%

1.4K

Hybrid 18%

394

No Guarantees 20%

443

Other Platform Open

Preprint 68%

1.2K

Institution 53%

965

Domain 9%

165

Other Internet 8%

146

Public 2%

29

Other Platform Locations

Name

Platform Type

Publications

arXiv
Preprint
1.3K
Le Centre pour la Communication Scientifique Directe - HAL - Diderot
Institution
287
PubMed Central
Domain
165
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI
Institution
140
DANS - Data Archiving and Networked Services
Institution
137
Massachusetts Institute of Technology - DSpace@MIT
Institution
133
California Institute of Technology - The Caltech Institute Archives
Institution
102
Elsevier - Scopus
Institution
95
Unknown Repository
Other Internet
88
University of Liège - Open Repository and Bibliography
Institution
86
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Data updated 18 August 2025

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