Microsoft Research does offer us an extremely nice opportunity to transform our computers to a virtual telescope. Observing the stars is a great experience.
The site states that you need a 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.
Use the link to go to http://www.worldwidetelescope.org/