Viasat-1 in testing
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'Broadband giant' rides to space

The Viasat-1 broadband spacecraft, one of the most powerful satellites ever built, has launched on a Russian Proton rocket.

With a total data throughput of some 140 Gbps, it will deliver broadband services to customers in North America.

Viasat-1 is among a wave of new satellites that are operating in the Ka-band, a part of the satellite-apportioned radio spectrum that allows high data-rates.

In Europe, the pace is being set by Eutelsat's Ka-Sat, launched at the end of last year. CEO of Eutelsat Communications, Michel de Rosen, told our correspondent Jonathan Amos about the significance of high-throughput data satellites.