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Meta Is Building One of the World's Biggest Undersea Cable Networks—It's Just One Piece of a Growing Seafloor Empire Spanning 6 Continents

Summary by Fortune
Meta's Petal cable is the latest of more than 20 subsea projects the company has bet on as its AI push demands ever more data capacity.

4 Articles

Meta says Petal will be about twice as powerful as current state-of-the-art transatlantic cables, but it shouldn't require a commensurate increase in energy costs or physical infrastructure. One key technical solution is multi-core optical fiber technology. In traditional fiber, data is transmitted over a single fiber core, but in the new system, a single fiber can have multiple independent light paths. This allows more information to be transmi…

·Vilnius, Lithuania
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The multinational Meta, which owns social networks Facebook and Instagram and the WhatsApp messaging platform, announced its new connectivity infrastructure project. It will be a submarine cable that will become the first in world history to be able to transport a petabit per second across an entire ocean and uniting two continents. [...] The entry <h4 class="pais">Global: </h4>Meta will build the first submarine cable capable of transporting a …

The construction and installation of a new submarine cable has been announced by Meta. In the future, a 7,000-kilometer fiber optic cable could link the United States and France that could transmit up to 1,000 terabits of data per second, which could even allow three-quarters of the planet's population to stream music simultaneously.

·Hungary
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Heti Világgazdaság broke the news in Hungary on Thursday, October 1, 2026.
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