Alphabet's Taara Project: Delivering Internet via Laser Beams

Innovations and Initiatives Infrastructure and Communication

Posted by NewAdmin on 2025-03-10 09:27:23 |

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Alphabet’s “moonshot factory,” known as X, has long cultivated craziness in its edgy projects. Perhaps the most outlandish was Loon, which aimed to deliver internet via hundreds of high-flying balloons. Loon eventually “graduated” from X as a separate Alphabet division, before its parent company determined that the business model simply didn’t work. By the time that balloon popped in 2021, one of the Loon engineers had already left the project to form a team specifically working on the data transmission part of connectivity—namely, delivering high-bandwidth internet via laser beams. Think fiber optics without the cables.

It’s not a new idea, but over the past few years, Taara, as the X project is called, has been quietly perfecting real-world implementations. Now, Alphabet is launching a new generation of its technology—a chip—that it says will not only make Taara a viable option to deliver high-speed internet, but potentially usher in a new era where light does much of the work that radio waves do today, only faster.

The former Loon engineer who leads Taara is Mahesh Krishnaswamy. Ever since he first went online as a student in his hometown of Chennai, India—he had to go to the US embassy to get access to a computer—he has been obsessed with connectivity. “Since then, I made it my life's mission to find ways to bring people like me online,” he tells me at X’s headquarters in Mountain View, California. He found his way to America and worked at Apple before joining Google in 2013. That’s where he first got motivated to use light for internet connectivity—not for transmissions to ground stations, but for high-speed data transfer between balloons. Krishnaswamy left Loon in 2016 to form a team to develop that technology, called Taara.

In the shorter term, Teller and Krishnaswamy hope to see Taara technology used to provide high-bandwidth internet when fiber is unavailable. One use case would be delivering elite connectivity to an island community just offshore. Or providing high-speed internet after a natural disaster. But they also have more ambitious dreams. Teller and Krishnaswamy believe that 6G might be the final iteration to use radio waves. We’re hitting a wall on the electromagnetic spectrum, they say. Traditional radio frequency bands are congested and running out of available bandwidth, making it harder to meet our growing demand for fast, reliable connectivity. 

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