Physics and Astronomy
Physics & Astronomy Information Sources
Preprint repositories allow researchers to share articles and reports of their research without going through the journal peer review process.
Conference proceedings can be found in a variety of databases.
Technical reports describe research done in response to a specific need and serve as a report of accountability to the funding agency. Funding agencies are often government agencies, but can also be private organizations as well.
A patent offers a monopoly on an invention for about 20 years depending on the country where the patent was issued. It gives the patent owner exclusive rights to exclude others from making or selling the invention described in the patent. Patents are useful for searching in order to identify new research fronts or licensing opportunities; avoid duplication of research effort. A patent contains valuable diagrams and detailed description that are often unpublished elsewhere.
Data archives are extremely important in astronomy and physics. JHU Data Management Services can assist you with your own data, whether it's crafting a data management plan or finding the best repository.