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IPFS News Link • Space Travel and Exploration

Version 2 Starlink with Lasers and Gen 2 SpaceX Starlink Bigger and Faster

• by Brian Wang

SpaceX will transition to Gen2 satellites which will be larger and much faster.

SpaceX started launching v1.5 Starlink satellites with laser communication that will reduce latency to about 10-20 milliseconds versus 17 milliseconds for fiber. Space laser communication is 40% faster because of light speed in vacuum vs fiber. Anything over 3000 miles has less latency via Starlink. SpaceX will put up Gen2 satellite network with satellites 850-1000 kilogram with up to 80 gbps capacity per satellite versus 18 gbps in current version 1. ~30,000 satellite Starlink Gen2 constellation as proposed would have a total instantaneous bandwidth of at least 500 terabits per second (Tbps) over land (~1800 Tbps including ocean coverage). As of 2020, the total installed bandwidth of global internet infrastructure was estimated to be 600 Tbps.

Laser-enabled Starlink will be able to help other satellites communicate where there are no available ground stations. Various countries and polar regions have no ground stations or sparse ground stations.