• If you run Mac OS X or don't meet these requirements try the Web Client
  • Microsoft® XP SP2 (minimum), Windows® Vista® (recommended)
  • PC with Intel Core 2 Duo processor with 2 gigahertz (GHz) or faster, recommended
  • 1 gigabyte (GB) of RAM; 2 GB RAM recommended
  • 3D accelerated card with 128 megabytes (MB) RAM; discrete graphics card with dedicated 256-MB VRAM recommended for higher performance
  • 1 GB of available hard disk space; 10 GB recommended for off-line features and higher performance browsing
  • XGA (1024 x 768) or higher resolution monitor
  • Microsoft Mouse or compatible pointing and scrolling device
  • Microsoft® DirectX® version 9.0c and .NET Framework 2.0
  • Required for some features; Internet connection at 56 Kbps or higher through either an Internet service provider (ISP) or a network. Internet access might require a separate fee to an ISP; local or long-distance telephone charges might also apply
Microsoft Research WorldWide Telescope
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Experience
WorldWide Telescope
Immerse yourself in a seamless beautiful environment.
WorldWide Telescope (WWT) enables your computer to function as a virtual telescope, bringing together imagery from the best ground and space-based telescopes in the world. Experience narrated guided tours from astronomers and educators featuring interesting places in the sky.
A web-based version of WorldWide Telescope is also now available. This version enables seamless, guided explorations of the universe from within a web browser on PC and Intel Mac OS X by using the power of Microsoft Silverlight 3.0.
Install WorldWide Telescope
Windows® System Requirements
(For Mac OS X use the Web Client) 

Mac & PC - Compare Client Versions
WorldWide Telescope Aphelion Release
New releases of both the Windows and web Client are now available with many new features and bug fixes. The Windows Client has photo-realistic rendering of the Earth and Sun, as well as shadows of Jupiter's moons. The new Cosmos rendering incorporates the most advanced view of the universe outside of our Galaxy ever available. Both versions include new features for professional astronomers, including displaying FITS images and Virtual Observatory queries. For details visit the data blog.
 
What is WorldWide Telescope?
What is WorldWide Telescope?
WWT is an application that runs in Windows that utilizes images and data stored on remote servers enabling you to explore some of the highest resolution imagery of the universe available in multiple wavelengths.
Learn more about WorldWide Telescope now
 
Take a Tour
Take a Tour
Watch and see what you are missing. You can see videos of the guided tours within WorldWide Telescope or if you have WWT already installed, you can download a tour and interactively explore what you see.
See the WorldWide Telescope tours now
 
Share the Experience
Share the Experience
Why keep the seamless exploration of the universe WorldWide Telescope can provide a secret? Tell your friends and family!
Share WorldWide Telescope Now
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