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How hard is it to build orbital data centers, actually?

15 July 2026 at 12:00

SpaceX has pinned the bulk of its future value on orbital data centers. Not rockets. Not spacecraft.

Instead, it envisions launching and maintaining a constellation of 1 million satellites capable of generating 120 GW to power tens of millions—and potentially up to 100 million—frontier-class GPUs for data center services.

The company's founder, Elon Musk, revealed plans for this massive constellation months ago, but until recently, the scope of the individual satellites was largely unknown. That changed in June, when Musk and Ian Dahl, director of satellite engineering for SpaceX, spoke in a promotional video about the company's plans to develop the first iteration of an orbital data center, called an AI1 satellite. The video finally provided the company's numbers about the satellite's size and power capabilities.

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© Aurich Lawson | Getty Images

How hard is it to build orbital data centers, actually?

15 July 2026 at 12:00

SpaceX has pinned the bulk of its future value on orbital data centers. Not rockets. Not spacecraft.

Instead, it envisions launching and maintaining a constellation of 1 million satellites capable of generating 120 GW to power tens of millions—and potentially up to 100 million—frontier-class GPUs for data center services.

The company's founder, Elon Musk, revealed plans for this massive constellation months ago, but until recently, the scope of the individual satellites was largely unknown. That changed in June, when Musk and Ian Dahl, director of satellite engineering for SpaceX, spoke in a promotional video about the company's plans to develop the first iteration of an orbital data center, called an AI1 satellite. The video finally provided the company's numbers about the satellite's size and power capabilities.

Read full article

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© Aurich Lawson | Getty Images

The Ars Technica 2026 Reader Survey: Let your voice be heard!

16 June 2026 at 14:35

Greetings, Arsians, and welcome to the great Ars Technica 2026 reader survey! It has been almost four years since we last ran a big site-wide survey like this, where we ask our readers—you!—what you like about the work we do and what we could perhaps improve on. This kind of check-in is absolutely vital to ensuring we're steering the ship properly, and we take the results very seriously. (The last time we did this, we got several thousand responses, and that's incredibly valuable data for us!)

You don't have to have been a reader since 1998 to weigh in, either. Whether you're a first-time reader, an old grizzled forum veteran, a front page comment maven, a newbie sysadmin, or a CEO, we want to hear what you have to say, no matter who you are. The only requirement is that you're a human! (Aliens are welcome as well, though we didn't really define any demographic categories for extraterrestrial beings. We'll tackle this issue if it comes up, I suppose.) There are a few text fields. Yes, we will read what you write there!

To assay, perchance to sing

Fortunately, this isn't a long survey—just a handful of targeted questions. We're not collecting any personally identifying information, and responses will only be viewed in aggregate. None of the data will be analyzed by anyone except us, and none of it will be sold or otherwise distributed outside of Ars. (We're using SurveyMonkey for our survey platform, the same as we have many times in the past.)

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New Glenn forced an explosive rewrite for NASA’s plans to build a moon base

9 June 2026 at 13:00
Blue Origin’s New Glenn exploded during a May 28 static-fire test. Credit: NASASpaceFlight

NASA unveiled plans in March to develop a lunar base as part of its “Ignition” event that outlined the agency’s new direction in human spaceflight. The plans, though, were rather […]

The post New Glenn forced an explosive rewrite for NASA’s plans to build a moon base appeared first on SpaceNews.

Far from Settled: Respondents at Odds over Greatest Physics Mysteries

Author(s): Niayesh Afshordi, Phil Halper, Matteo Rini, and Michael Schirber

One of the largest physics surveys ever conducted finds respondents divided on most topics. Surprisingly, some “textbook” answers only racked up a minority of votes.


[Physics 19, 34] Published Tue May 12, 2026

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