As reported by MIT Technology Review: Providing Internet access from orbiting satellites—a concept that
seemed to have died with the excesses of the dot-com boom—has returned
thanks to SpaceX founder (and dot-com billionaire) Elon Musk. And while
such a service would be expensive and risky to deploy, recent
technological trends mean it’s no longer so out-of-this-world.
Musk has proposed a network of some 4,000 micro-satellites to provide
broadband Internet services around the globe. SpaceX is partnering with
Google and Fidelity Investments, which are investing $1 billion for a
10 percent stake in the endeavor. Richard Branson’s Virgin Galactic and
Qualcomm, meanwhile, are investing in a competing venture called OneWeb,
which aims to build a similar network of micro-satellites.
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Fiber-optic cables, in contrast, are easy and cheap to install, even
in harsh environments like the ocean floor, and they can transmit huge
amounts of data. Beaming data from a satellite is done by radio, and is
limited by the available spectrum, as well as the amount of power a
satellite can get from its solar panels. Most communications satellites
have data-transfer speeds of around a gigabit per second, compared to
several terabits per second for the fastest fiber.
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SpaceX and Virgin Galactic also hope to ride a different boom by
targeting parts of the world where there is little infrastructure and a
huge opportunity for Internet growth. Satellite services remain less
economical in areas where fiber-optic networks are in place, but Musk
has stated that his Internet service would be aimed primarily at
providing service to remote areas of the globe.
“You’ve got large swaths of land where there is a relatively low
density of users,” Musk told an audience at the opening of SpaceX’s new
satellite development center in Seattle last week. “Space is actually
ideal for that.”
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Whether, as Musk has suggested, SpaceX’s service could also be a
viable alternative for customers in the developed world is less certain.
Ostrove says satellites simply cannot compete with the bandwidth and
low cost of fiber-optic cables.
The technology could also prove tricky for these newcomers to master.
SpaceX, after all, has built rockets—but no satellites yet.
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