ADS Astronomy Query Form
NASA's Astrophysics Data System - literally millions of astronomy-related abstracts, fully scanned articles, and links to journals.
We are an abstracting service offering a search interface into the scientific and technical literature covering astronomy, planetary science, physics, and the arXiv e-prints. You can use our service to search the contents of hundreds of publications in these fields and then optionally access the fulltext of articles of interest to you if and when it is available online. Note, however, that in many cases access to this content is restricted by the publisher, and there is nothing we can do to help you gain access to it.