Aurora is the code name for the component of Netscape's post-4.0 browser. It helps manage different types of information. Using eXtensible markup language (XML) and the resource description framework (RDF) standard, Aurora allows you to use different types of files (Web pages, local files, shared documents) in the same environment. With this new feature, you can drag Navigation Center icons around like file icons on your computer, making it easy to mix and match data.
(see Open Source)