Open Access statistics for National Aeronautics and Space Administration, United States, covering academic research published from 2000 to 2023. Read More.
Open Access Percentage
55%
Total
Publications
135K
Total Open
Publications
75K
Total
Citations
4.7M
Open Access
Percentage
55%
Total
Publications
135K
Total Open
Publications
75K
Total
Citations
4.7M
Breakdown
Publisher Open
13%
Both
22%
Other Platform Open
20%
Closed
45%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 22%
11K
Hybrid 25%
12K
No Guarantees 53%
25K
Other Platform Open
Institution 67%
38K
Preprint 31%
18K
Other Internet 27%
15K
Domain 9%
5K
Public 8%
4.5K
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
arXiv | Preprint | 17K |
nasa.gov OAI-PMH Repository | Institution | 15K |
California Institute of Technology - CaltechAUTHORS | Institution | 6.3K |
PubMed Central | Domain | 5K |
DOI | Other Internet | 4.6K |
CiteSeer X | Other Internet | 3.6K |
Semantic Scholar | Public | 3.2K |
Europe PMC | Domain | 3.1K |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 2.5K |
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI | Institution | 2.4K |
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