Outer space

A small satellite revolution?

National security agencies are steadily testing out more small satellites before committing to new constellations of the lower-cost alternatives, according to Bill Gattle, the president of Space and Intelligence Systems at the Harris Corporation.

“We’re seeing a lot more acceleration, certainly in the intelligence community, on their willingness to adopt it. We’ve certainly seen some things out of Army,” said Gattle, a former program director of terrestrial communications and director of engineering for defense programs at the Pentagon. “It’s moved from ... customers being intrigued to believing it’s worthy of a demo.”

Small satellites are typically no bigger than a refrigerator and weigh less than 180 kilograms, according to a NASA fact sheet. By comparison, some of the largest satellites are the size of a school bus. The reduced size means small satellites are typically cheaper but less capable than their larger counterparts. To make up for that gap, small sats can be launched in a constellation of tens or even hundreds of satellites, networked together, making the entire system more resilient if one goes offline.