Starcloud (@Starcloud

Starcloud

1,264 posts

Starcloud

@Starcloud_

Starcloud is building data centers in space, to address the AI energy need. We recently launched the first H100 to space. White paper at starcloud.com/wp

Redmond, WA

Joined February 2024

Pinned
Starcloud
@Starcloud_
Nov 13, 2025
Thanks @YCombinator for documenting @Starcloud_Inc1’s journey to launching the first @Nvidia H100 in space 🙏 Check it out below! 🎥🤓
Y Combinator
@ycombinator
Nov 13, 2025
Starcloud (@Starcloud_Inc1) recently made history by launching a satellite with an NVIDIA H100 into orbit — the first time a GPU that powerful has ever operated in space. It's the first step toward building AI data centers in orbit, powered by continuous sunlight and cooled by
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104K
Starcloud reposted
Philip Johnston
@PhilipJohnston
16h
The first time I posted this was September 2024… I didn’t think it would still be relevant now 🤦‍♂️🙄
JerryRigEverything
@ZacksJerryRig
Jun 10
You know the reason your Stanley or Hydroflask is so good at keeping your water cold is because there's a vacuum inside the walls of the thermos. Heat can't conduct in a vaccum. And "radiated" heat is ineffective at the temperatures processors operate at. This satellite
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Starcloud reposted
Philip Johnston
@PhilipJohnston
16h
This is the first time I’ve heard of this Jerry noob but it’s astonishing to me that people can be so confidently wrong. “It will be dead in minutes.” 🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️ Will we get any kind of apology from these people in a year or two? Nope. 🤷‍♂️ I guess that’s how the world works.
JerryRigEverything
@ZacksJerryRig
Jun 10
You know the reason your Stanley or Hydroflask is so good at keeping your water cold is because there's a vacuum inside the walls of the thermos. Heat can't conduct in a vaccum. And "radiated" heat is ineffective at the temperatures processors operate at. This satellite
46K
Starcloud reposted
bobdbldr
@0xBobdbldr
Jun 9
One of the interesting space startups i've been following, Starcloud, just shared their next steps publicly, one detail in particular tells you exactly where this sector is heading StarCloud 2 Launching in January 2027, and it will be a massive step up, with a 8 kW spacecraft
1.5K
Starcloud reposted
Apurv Kochara
@Kochara13
Jun 9
Replying to @PhilipJohnston @SpaceNews_Inc and @Starcloud_
In Summer 2024, a company called @Starcloud_ was one of the first to come out and say, ‘We’re going to build data centers in space.’ Do you know what people’s reaction was 🤔?? People laughed at them. On the internet people were saying it was the stupidest idea ever. Nearly 18
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NVIDIA
@nvidia
Oct 21, 2025
Space isn’t just for stars anymore. 🌠 Starcloud’s H100-powered satellite brings sustainable, high-performance computing beyond Earth. Learn more: nvda.ws/47eYZvC
6.2K
Starcloud
@Starcloud_
Jun 9
👌
Philip Johnston
@PhilipJohnston
Jun 9
I’ll be speaking about @Starcloud_ and data centers in space at @Founders_Forum on Thursday!
1.4K
Starcloud reposted
Dave Yen
@davecyen
Jun 9
When I first met @PhilipJohnston during his YC batch, he casually walked me through the spreadsheet model of Starcloud-1 and subsequent missions - from memory. The details and timelines have probably shifted since then, but not by much - and it still sticks out as one of the
Philip Johnston
@PhilipJohnston
Jun 9
For those who say I never answer whatever is their particular pet peeve on orbital data centers, this is a particularly dense interview covering a wide range of topics in a short time. Thanks for having me @SpaceNews_Inc to talk about @Starcloud_ and orbital data centers! 🤓
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Starcloud
@Starcloud_
Jun 9
👌
Philip Johnston
@PhilipJohnston
Jun 9
I’m speaking on the deep tech stage at London Tech Week @LDNTechWeek in one hour, come by!
920
Starcloud reposted
Philip Johnston
@PhilipJohnston
Jun 9
For those who say I never answer whatever is their particular pet peeve on orbital data centers, this is a particularly dense interview covering a wide range of topics in a short time. Thanks for having me @SpaceNews_Inc to talk about @Starcloud_ and orbital data centers! 🤓
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12K
Starcloud
@Starcloud_
Jun 6
👌
Elon Musk
@elonmusk
Jun 6
Jaynit
00:00
Jaynit
2.5K
Starcloud reposted
Adi Oltean
@AdiOltean
Jun 6
Elon: ”At this point we have found our GPUs to be quite reliable. There is infant mortality, which you can obviously iron out on the ground. So you can just run them on the ground and confirm you don't have infant mortality with the GPUs. But once they start working and you
Elon Musk
@elonmusk
Jun 6
Jaynit
00:00
Jaynit
3.6K
Starcloud reposted
Apurv Kochara
@Kochara13
Jun 5
Replying to @PhilipJohnston @nvidia and @Google
“We’ve just put our first spacecraft in orbit. It carries a high powered @nvidia H100 chip. What this can do in the short term is provide inference and cloud compute services for other spacecraft. The reason we need to be in orbit is to be closer to the data they produce so we
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Garry Tan
@garrytan
Jun 4
Starcloud just became the fastest YC company ever to a $1B valuation after Demo Day. 17 months. Building data centers in orbit. The hardest possible problem, the fastest possible ascent. This is what we should be building.
2.5K
Starcloud
@Starcloud_
Jun 5
🤓👌
Philip Johnston
@PhilipJohnston
Jun 5
Thanks @Bloomberg for having me on to talk about @Starcloud_ and data centers in space! 🚀
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2.1K