The powerful search engine allows searches to be performed on many keywords. The search material includes short articles, abstracts and publications. The telescopes are available for scientists all over the world to obtain information about specific astronomical objects, including observations of Sun, planets of the Solar System and extra-solar objects. The official sites also contain information about accomplished projects and those under way. Usually an extensive library of resources with publications and references is available.
Some observatories even store their collected data for public use.
The data includes spectrographic information of particular objects and regions of the sky. As a research facility of the US National Science Foundation, it provides radio-telescopes for use by scientists. The site provides information about projects under way, and publishes outcomes of the completed projects. The latter contain links to publications and articles, available for free in HTML and Post-script formats. The system contains an extensive collection of publications, their abstracts.