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Elon Musk’s SpaceX is known for its frequent launches, which now dominate the space industry. But the satellites that the rockets send to space are just as important for the company as the launches. Starlink is SpaceX’s answer to providing global, high-speed internet coverage using a network of thousands of satellites buzzing around the planet in a region known as low Earth orbit (LEO), about 342 miles above the Earth’s surface.

SpaceX launched its first batch of Starlink satellites in 2019. Adoption of the service has ballooned since then. The company has said Starlink has more than 2 million active customers and is available on all seven continents and in over 60 countries.

“This growth is uncharacteristic in the sense of its magnitude. Whereas prior satellite service providers have ramped up to anywhere at most between 500,000 to a little bit over a million subscribers. And this has taken, you know, a ten-year period, Starlink’s race to 2 million subscribers has taken only the better part of two years,” says Brent Prokosh, a Senior Affiliate Consultant at Euroconsult.

A Falcon 9 rockets launches a Starlink mission on January 20, 2021.

SpaceX

Experts estimate that the global market for consumer satellite services, including TV, radio, and broadband internet, was worth over $92 billion in 2022. And Starlink could be in a good position to capture a big piece of the market. Although initially conceived for the consumer segment, Starlink’s offerings have expanded to serve enterprise customers including in the maritime and aviation industries

“Starlink’s importance to SpaceX overall as a company is imperative. Euroconsult estimates that, optimistically, by the end of 2023, this business of Starlink could represent upwards of 40% of SpaceX’s overall business. This total would be somewhere in excess of $3 billion generated from Starlink,” Prokosh says.

Starlink has been praised for its ability to connect remote parts of the world that would otherwise not have access to reliable internet. The service has also become indispensable in areas hit by natural disasters, and, more recently, during times of conflict, particularly in the Russia-Ukraine war.

“The big benefit of Starlink and how it’s being used in Ukraine today is communications. It’s providing a pathway for the military, for civilians to stay connected to the outside world. It allows a pathway for the military to communicate with each other and to provide command and control direction to their forces,” says Kari Bingen who is the Director of the Aerospace Security Project at the Center for Strategic and International Studies.

Ukrainian forces set up Starlink satellite receivers to provide connection for civilians at Independence Square after the withdrawal of the Russian army from Kherson to the eastern bank of Dnieper River, Ukraine, on November 13, 2022.

Metin Atkas | Anadolu Agency | Getty Images

But Starlink’s growing influence is garnering condemnation from critics who say Musk is meddling in geopolitics. Meanwhile, the scientific community has its own concerns. 

“The astronomical community got concerned about the first launch of the Starlink satellite a few years ago because the projection of the full constellation of several tens of thousands of satellites in low Earth orbit was immediately seen as an interference to both the optical observation and to radio observation,” says Piero Benvenuti, who is the Interim General Secretary, International Astronomical Union.

To find out more about Starlink’s rapid expansion and if it can continue, watch the video.

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Amazon Web Services is building equipment to cool Nvidia GPUs as AI boom accelerates

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Amazon Web Services is building equipment to cool Nvidia GPUs as AI boom accelerates

The letters AI, which stands for “artificial intelligence,” stand at the Amazon Web Services booth at the Hannover Messe industrial trade fair in Hannover, Germany, on March 31, 2025.

Julian Stratenschulte | Picture Alliance | Getty Images

Amazon said Wednesday that its cloud division has developed hardware to cool down next-generation Nvidia graphics processing units that are used for artificial intelligence workloads.

Nvidia’s GPUs, which have powered the generative AI boom, require massive amounts of energy. That means companies using the processors need additional equipment to cool them down.

Amazon considered erecting data centers that could accommodate widespread liquid cooling to make the most of these power-hungry Nvidia GPUs. But that process would have taken too long, and commercially available equipment wouldn’t have worked, Dave Brown, vice president of compute and machine learning services at Amazon Web Services, said in a video posted to YouTube.

“They would take up too much data center floor space or increase water usage substantially,” Brown said. “And while some of these solutions could work for lower volumes at other providers, they simply wouldn’t be enough liquid-cooling capacity to support our scale.”

Rather, Amazon engineers conceived of the In-Row Heat Exchanger, or IRHX, that can be plugged into existing and new data centers. More traditional air cooling was sufficient for previous generations of Nvidia chips.

Customers can now access the AWS service as computing instances that go by the name P6e, Brown wrote in a blog post. The new systems accompany Nvidia’s design for dense computing power. Nvidia’s GB200 NVL72 packs a single rack with 72 Nvidia Blackwell GPUs that are wired together to train and run large AI models.

Computing clusters based on Nvidia’s GB200 NVL72 have previously been available through Microsoft or CoreWeave. AWS is the world’s largest supplier of cloud infrastructure.

Amazon has rolled out its own infrastructure hardware in the past. The company has custom chips for general-purpose computing and for AI, and designed its own storage servers and networking routers. In running homegrown hardware, Amazon depends less on third-party suppliers, which can benefit the company’s bottom line. In the first quarter, AWS delivered the widest operating margin since at least 2014, and the unit is responsible for most of Amazon’s net income.

Microsoft, the second largest cloud provider, has followed Amazon’s lead and made strides in chip development. In 2023, the company designed its own systems called Sidekicks to cool the Maia AI chips it developed.

WATCH: AWS announces latest CPU chip, will deliver record networking speed

AWS announces latest CPU chip, will deliver record networking speed

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Bitcoin rises to fresh record above $112,000, helped by Nvidia-led tech rally

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Bitcoin rises to fresh record above 2,000, helped by Nvidia-led tech rally

The logo of the cryptocurrency Bitcoin can be seen on a coin in front of a Bitcoin chart.

Silas Stein | Picture Alliance | Getty Images

Bitcoin hit a fresh record on Wednesday afternoon as an Nvidia-led rally in equities helped push the price of the cryptocurrency higher into the stock market close.

The price of bitcoin was last up 1.9%, trading at $110,947.49, according to Coin Metrics. Just before 4:00 p.m. ET, it hit a high of $112,052.24, surpassing its May 22 record of $111,999.

The flagship cryptocurrency has been trading in a tight range for several weeks despite billions of dollars flowing into bitcoin exchange traded funds. Bitcoin purchases by public companies outpaced ETF inflows in the second quarter. Still, bitcoin is up just 2% in the past month.

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Bitcoin climbs above $112,000

On Wednesday, tech stocks rallied as Nvidia became the first company to briefly touch $4 trillion in market capitalization. In the same session, investors appeared to shrug off the latest tariff developments from President Donald Trump. The tech-heavy Nasdaq Composite notched a record close.

While institutions broadly have embraced bitcoin’s “digital gold” narrative, it is still a risk asset that rises and falls alongside stocks depending on what’s driving investor sentiment. When the market is in risk-on mode and investors buy growth-oriented assets like tech stocks, bitcoin and crypto tend to rally with them.

Investors have been expecting bitcoin to reach new records in the second half of the year as corporate treasuries accelerate their bitcoin buying sprees and Congress gets closer to passing crypto legislation.

Don’t miss these cryptocurrency insights from CNBC Pro:

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Perplexity launches AI-powered web browser for select group of subscribers

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Perplexity launches AI-powered web browser for select group of subscribers

Dado Ruvic | Reuters

Perplexity AI on Wednesday launched a new artificial intelligence-powered web browser called Comet in the startup’s latest effort to compete in the consumer internet market against companies like Google and Microsoft.

Comet will allow users to connect with enterprise applications like Slack and ask complex questions via voice and text, according to a brief demo video Perplexity released on Wednesday.

The browser is available to Perplexity Max subscribers, and the company said invite-only access will roll out to a waitlist over the summer. Perplexity Max costs users $200 per month.

“We built Comet to let the internet do what it has been begging to do: to amplify our intelligence,” Perplexity wrote in a blog post on Wednesday.

Perplexity is best known for its AI-powered search engine that gives users simple answers to questions and links out to the original source material on the web. After the company was accused of plagiarizing content from media outlets, it launched a revenue-sharing model with publishers last year.

In May, Perplexity was in late-stage talks to raise $500 million at a $14 billion valuation, a source familiar confirmed to CNBC. The startup was also approached by Meta earlier this year about a potential acquisition, but the companies did not finalize a deal.

“We will continue to launch new features and functionality for Comet, improve experiences based on your feedback, and focus relentlessly–as we always have–on building accurate and trustworthy AI that fuels human curiosity,” Perplexity said Wednesday.

WATCH: Perplexity CEO on AI race: The market of providing answers to questions will become a commodity

Perplexity CEO on AI race: The market of providing answers to questions will become a commodity

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