With $150 billion in annual sales last year, Wal-Mart hopes to remain the number one retailer on the planet by setting up 150 so-called super-centers around the country where it can sell groceries alongside general merchandise.
To that end, it is considering using high-resolution satellite images to analyze the best location to set up new stores, as well as pinpoint where competitors -- such as Sears and Kmart -- have set up their stores.
With a budget of $4.5 billion slated to build these super-centers, Wal-Mart approached Space-Imaging in Thornton, Colorado to help them scope out new sites.
"Wal-Mart approached [Space Imaging] because they realized that some areas are difficult for building new stores," said Thomas Graff, chairman of the Department of Geosciences at the University of Arkansas in Fayetteville who helped Space Imaging with evaluating Wal-Mart and the discount retail industry.

"The Wal-Mart study was our first attempt to educate the retail industryon the value of using remote sensing technology."

By evaluating an area by satellite, Wal-Mart realized it could get the information it needed quickly, rather than having to spend the time and money to send someone there to collect the data, Graff said.
Wal-Mart did not return repeated calls from SPACE.com for comment.
By using the photos from Space Imaging’s high-resolution IKONOS satellite, analysts prepared a study for Wal-Mart concentrating on a 15-mile (24 kilometer) radius from the center of Springfield, Missouri where the retailer has three stores.
The analysts counted cars in competitors’ parking lots. They also were able to pinpoint potential customers by analyzing traffic from new neighborhoods in the area.
In addition, they located areas where there were flooding problems and fault zones, and advised Wal-Mart not to build there.
"The Wal-Mart study was our first attempt to educate the retail industry on the value of using remote sensing technology," says Mark Brender, director of Washington operations for Satellite Imaging.
And he said that several other industries could benefit from these pictures.
"This technology is visual truth serum," Brender said.
But these commercial high-resolution photos worry government officials who believe they could encourage industrial espionage, terrorism or more cross-border military attacks in the developing world.
"There are security implications," said Timothy Stryker at the Department of Commerce, who licenses remote sensing firms for the agency. "But the technology is important for industry because it helps make sure U.S. companies stay at the forefront."