Microsoft WorldWide Telescope v2.2

The WorldWide Telescope (WWT) is a rich visualization environment that functions as a virtual telescope, bringing together imagery from the best ground- and space-based telescopes in the world to enable seamless, guided explorations of the universe.

WorldWide Telescope, created with Microsoft's high-performance Visual Experience Engine, enables seamless panning and zooming across the night sky blending terabytes of images, data, and stories from multiple sources over the Internet into a media-rich immersive experience.

WorldWide Telescope is a collaborative effort between Microsoft Research and a variety of academic and governmental agencies. Microsoft Research is making WorldWide Telescope available as a free resource to the astronomy and education community with the hope that it will inspire and empower people to explore and understand the universe as never before.

system requirements
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

Homepage:http://worldwidetelescope.org/;http://research.microsoft.com/projects/wwt/

Download:
http://content.worldwidetelescope.org/equinox/wwtequinoxsetup.msi

 www.vista123.net, easily tweak and customize your Windows Vista.