TerraServer was a commercial website[1] specializing in aerial and satellite imagery which was originally launched in 1997.

The company was previously named Aerial Images until May 2002 when the assets of Aerial Images were sold and the company renamed itself TerraServer.com, Inc. Aerial Images was a part of the original project that involved Microsoft and Compaq as a demonstration of the real-world scalability of SQL Server and Microsoft's Windows NT Server.

TerraServer expanded its partnerships and became an image provider for LandVoyage and the DigitalGlobe family of companies: GlobeXplorer and AirPhotoUSA, as well as imagery from the USGS and USDA.

Aerial Images kept the TerraServer.com domain name to create a commercial site selling custom selected imagery.

The Microsoft project used the TerraServer brand name in a variety of ways including terraserver.homeadvisor.com, terraserver.microsoft.com, and terraserver.msn.com.