Always double check the source of any information before using the information in your research. Some elements to consider:
For more information on how to consider information, click here.
Datasets provided by the National Institute of Standers and Technology's Physical Measurement Laboratory.
Coverage: Open Access
Includes three bibliographic collections containing more than 15 million records covering publications in astronomy and astrophysics, physics, and general science, including all arXiv e-prints. Abstracts and full-text of major astronomy and physics publications are indexed and searchable
Coverage: Open Access
Searches over 60 databases and over 2,200 scientific websites to provide users with access to more than 200 million pages of authoritative federal science information including research and development results.
Coverage: Open Access