IPAC is also participating organization in the Virtual Astronomical Observatory (VAO).
The European Virtual Observatory aims at deploying an operational Virtual Observatory in Europe.
It is the German contribution to international efforts to establish a general Virtual Observatory.
Virtual Observatories initiatives worldwide, State of the projects 2006 ( InterQuanta )
The VizieR catalog is now a major data source as part of the Astrophysical Virtual Observatory.
All these archive are include in the Virtual Observatory infrastructure inside the Italian Virtual Observatory, VObs.
The Virtual Observatory is an international astronomical community-based initiative.
In 2004 he and several other astronomers discovered 30 supermassive blackholes at the European Astrophysical Virtual Observatory using pioneering techniques.
It was the first scientific discovery to emerge from a Virtual Observatory.
An information system allowing such an access is called a Virtual Observatory.