Energy is what makes the Universe go around but it also causes Global Warming. I checked with AI to make sure I was not talking hot air…
Google AI:
Energy is the power that makes everything in our Universe work, but the way humans make energy on Earth is the main reason our planet is getting too warm.
What humans mess up humans can fix and SpaceX is getting ready to do it! Harness energy in space and dissipate the heat back to space, what an ingenious idea!
The New Product SpaceX Is Betting Its Entire Company on
In June 2026 SpaceX raised ~$85B in the biggest IPO ever — then bet the company on AI 1, a first-generation compute satellite wider than a 747 that hasn’t flown yet. One AI 1 carries ~150 kW peak / 120 kW average compute — roughly one Nvidia GB300 rack (72 GPUs, ~140 kW) — powered by SpaceX-made solar at ~250 W/m² and cooled by up to 110 m² of liquid radiators. Earth data centers already fight 100–300 MW buildings and a grid that’s short; Wall Street gives this a ~7% chance. I walk through the spec sheet from the Bastrop reveal, why Starlink V3 makes the bus possible, and whether the math actually works.
Is Global Warming marketing? Earthbound Giga Data Centers will add lots of warming while overloading the electric grids. People are already protesting, NIBY!
GoogleAI:
Global warming is a heavily documented physical reality driven by greenhouse gases, not a marketing campaign. However, concerns regarding giga data centers overloading electric grids, raising local microclimate temperatures (“heat islands”), and triggering widespread community protests (NIMBY backlash) are entirely real and rapidly growing. [1, 2, 3]
Climate Change vs. Data Center Realities
Global Warming: Backed by decades of independent empirical data, atmospheric measurements, and fundamental thermodynamics regarding heat-trapping gases.
Data Center Heat Islands: Research shows hyperscale data centers increase surrounding land temperatures significantly through massive thermal and electrical waste. [1]
The Infrastructure Crisis
Grid Overload: Surging power demand from artificial intelligence and cloud computing strains regional electricity grids, accelerating localized energy price hikes and shortages. [1]
Public Backlash: Communities worldwide are pushing back through zoning protests, legal moratoriums, and political opposition over local resource allocation. [, 2, 3]
People are protesting NIMBY because these data centers are consumer vast amounts of water the people need and creating electrical grid pressure and an increase in their utility bill. Plus, yeah, they are creating a lot of heat.
Doesn’t change the fact that you cannot rewrite the laws of thermodynamics just because you are rich.
Who is rewriting what laws? I was curious about how the space data centers would dissipate heat since convection is not an option.
GoogleAI:
Because space is a giant vacuum with no air or water, space data centers must rely entirely on thermal radiation to get rid of heat, using specialized giant radiator panelsto shine infrared energy away into the dark void.
Think of space like a giant Thermos. A Thermos keeps hot cocoa warm because its vacuum walls stop heat from moving via conduction (touching something cold) or convection (air floating away with the heat). Because a data center in space is trapped inside this ultimate Thermos, cooling it requires a clever combination of internal transport and external radiation.
1. Moving the Heat: Internal Convection
While there is no air outside the spacecraft, there is a lot of activity inside. YouTube·From First Principles
Liquid Cooling Loops: Closed pipes are attached directly to the hot computer chips.
Special Fluids: A fluid (like ammonia, which does not freeze easily) flows over the chips to absorb the heat.
Pumps: Pumps push this hot liquid away from the computer brains and out toward the outer edges of the spacecraft. YouTube·From First Principles +1
2. Dumping the Heat: Thermal Radiation
Once the hot liquid reaches the edge of the ship, it enters massive radiator panels.
Infrared Light: The radiators act like a giant heat lamp, glowing with invisible infrared light. This light carries the energy away into the emptiness of space.
The Scale Problem: Radiation is a very slow way to get rid of heat. Because of this, space data centers need massive surface areas. A large data center on Earth might require radiator wings in space that are the size of several football fields just to stay at room temperature.
3. Fighting the Sun: Sunshields and Orientation
The sun is incredibly hot and pours down constant energy in orbit. If the radiator faces the sun, it will actually absorb heat instead of letting it go.
Deep Space Pointing: Space data centers use motorized hinges to keep their flat radiators pointed edgewise to the sun and directly at the cold, dark parts of deep sSpaceComputer +1
Reflective Blankets: The side facing the sun is covered in reflective white coatings or multi-layered silver blankets to bounce solar heat away.
I still remember the astonished faces of my fellow students at MIT when the news of Sputnik broke.
GoogleAI:
Hearing the news of Sputnik at MIT on October 4, 1957, marked a historic turning point that stunned students and faculty alike, instantly launching the space age and fundamentally reshaping American science, engineering, and higher education priorities.
The Reaction at MIT
Students and professors gathered in shock as the Soviet Union successfully launched the first artificial satellite into orbit.
The event shattered assumptions of American technological dominance.
Campus discussions immediately turned to national security and the future of science.
National Impact
The U.S. government rapidly increased funding for scientific research and education.
Congress created the National Aeronautics and Space Administration (NASA) in 1958.
Schools across the country placed a much heavier focus on math and physics.
SciFi for Sailors!
GoogleAI:
Space sailing in science fiction blends nautical tradition with cosmic travel, using huge reflective solar sailstructures powered by photon momentum or laser beams rather than rocket fuel. Famous stories like Arthur C. Clarke’s “Sunjammer” helped popularize the concept of light-pushed spacecraft racing through the vacuum. [1, 2, 3]
Classic Sci-Fi Tropes and Uses
Clipper Ships: Ships deploy massive, delicate metallic sheets to catch solar wind and radiation pressure.
Tacking and Turning: Crews change angles to spiral inward or outward in a star system.
Laser-Pushed Probes: Giant ground or orbital lasers beam energy onto ultra-thin sails for interstellar trips. [1, 2, 3]
Real Science vs. Fiction
The Push is Weak: Sunlight gives a tiny force, meaning sails must be wide and extremely light.
No Fire or Smoke: Travel is silent and steady, lacking the explosive thrust of chemical rockets. [1, 2, 3]
About radiators in space
No wind, no problem!
The Captain
o o o o o o o o o o o o o o o o o o o o
Some people are problem see_ers, others are problem solvers.
Maybe it’s not confusion, but there are some two orders of magnitude difference in the warming effects.
The warming from data centers (and other human energy usage) is much smaller than the effects from greenhouse gases. Google will gladly tell you that the GHG effect is “60 to 100 times greater” than direct waste heat from all human activity.
This means that from a warming perspective, locating a data center in space is much less effective than switching to, say, a nuclear or hydro source.
It isn’t the energy itself, it is the way it is made. So, you are actually correct, just for the wrong reasons. Because space datacenters are solar powered, they would not contribute to global warming.
And except for the fact that they are wildly impractical with any current technology, that would be a great thing.
However: the power needed would be an order of magnitude greater than currently available with solar panels, or the panel farm would have to be massive. Assembled in space. Prone to radiation degradation. And space junk.
And heat dissipation would be two orders of magnitude greater than anything currently in space: radiators the size of multiple football fields or larger. Assembled in space. Also prone to space junk, micrometeoroids, etc. Heat dissipation is crucial, as chips (and solar panels) degrade quickly under heat stress, which is why earthbound centers consume so much water for cooling.
Maintenance costs would be, well, impossible, unless we have a way to put astronauts and equipment back in space on a volume basis. Computer chips are subject to significant degradation from radiation once outside earth’s atmosphere (or above 10,000 feet, actually) making serious computation a questionable prospect for “flying chip farms” in orbit.
And not last, but important, the cost of hoisting all this into space and engineering it to self-assemble - or somehow getting humans up there to put it together dwarfs any costs for doing the same things now on the ground, in spite of increasing pushback, regulations, and energy/water shortage issues.
Not that some or all of this might not be overcome, someday, sometime, but it is unlikely to happen on any important scale in the lifetime of anyone reading this thread. Really cool science fiction, of course, but not reality based even with the most forgiving time telescope.
Here is the original story, complete with illustrations, of Arthur C Clarke’s magnificent short story SUNJAMMER, as printed in tne BSA’s magazine Boy’s Life. I still remember my electric thrill reading it whenit arrived in our mail.Read Arthur C. Clarke's 'The Sunjammer' Short Story
