To get started finding information in the sciences, it's useful to know a little about the Science Information Life Cycle. The life cycle of information is different whether you're in the Sciences, Social Sciences, or Humanities. This tutorial from the UC Irvine Libraries is designed to help you understand the unique characteristics of information production in the Sciences so that you can use library resources effectively and efficiently:
Databases are the best way to find scholarly, peer-reviewed journal articles and eprints. Several key databases are listed below, but if you're having trouble finding something, try one of the many databases listed on our Physics & Astronomy Databases page. And don't forget to click "more" to see additional Physics & Astronomy resources.
In academic publishing, a preprint is a draft of a scientific paper that has not yet been published in a peer-reviewed scientific journal OR it could refer to an article that has been accepted for publication but has not yet been published in its final, peer-reviewed form. They are also referred to as "e-prints," or you might see the phrase "as soon as published."