Explore astronomical data via a virtual observatory.

Astronomical data pours into worldwide databases every hour of every day and night. Wouldn't it be great to explore any data or image from any observatory anywhere in the world? That's the concept of a virtual observatory: the innovative use of technology and networks to bring astronomical discovery to anyone, anytime, anywhere.

• International Virtual Observatory Alliance
• National Virtual Observatory
• National Virtual Observatory Education & Outreach
• Astrophysical Virtual Observatory
• Canadian Virtual Observatory
• AstroGrid
• SkyView
• Theory in a Virtual Observatory