The Hindu reports: The story so far:On May 4, Pixxel, a Bengaluru-based imaging satellite company, said that it would partner with the AI firm Sarvam to launch what is being described as India’s first ‘orbital data centre’ satellite, named Pathfinder. This is expected to be a 200 kg class satellite scheduled for orbit by the fourth quarter of 2026. It will carry datacentre-class GPUs (graphics processing units) alongside Pixxel’s hyperspectral imaging camera, the company’s bread-and-butter business.What is an orbital data centre?It is a constellation of satellites carrying the same kind of GPUs found in terrestrial data centres.
It can train and run AI models in orbit rather than only relaying data to ground stations. Such a centre can do more demanding work than the low-power “edge” processors that conventional satellites use for tasks like signal compression. Edge computing on earth refers to the practice of running computation close to where data is generated rather than in a centralised cloud, and the same logic, applied in orbit, is what space-based compute promises to extend.Pixxel’s Pathfinder is being built as a single-satellite demonstrator, designed to test whether ground-grade hardware can be made to function reliably in the harsh, hot environment of low Earth orbit.
Background
“It will start off as being one satellite, obviously, that we will try to launch before the end of this year,” Awais Ahmed, the company’s chief executive, told The Hindu.Why are global firms suddenly interested?Three factors have converged in the past two years, prompting large tech companies to strive towards making such centres real. Data centres are being constrained by limits on energy availability, land, water, and local regulation, all of which have been amplified by the demands of AI. In the right orbit, solar power is effectively continuous and offers free electricity, which proponents regard as the strongest argument for moving computation to space.Earth observation satellites also generate detailed, heavy image files that are expensive to downlink; processing the data in orbit and beaming down only the conclusions has long been seen as a way to ease that bottleneck.
Key facts
- This is expected to be a 200 kg class satellite scheduled for orbit by the fourth quarter of 2026.
- It can train and run AI models in orbit rather than only relaying data to ground stations.
- Such a centre can do more demanding work than the low-power “edge” processors that conventional satellites use for tasks like signal compression.
What this means
SpaceX Starship, the brash giant that could redefine the plotThe third factor is competitive positioning. SpaceX CEO, Elon Musk said on X in 2025 that “simply scaling up Starlink V3 satellites, which have high-speed laser links, would work. SpaceX will be doing this.” He also argued that “Starship (the company’s most powerful rocket) could deliver 100GW/year to high Earth orbit within four to five years if we can solve the other parts of the equation.” Amazon founder Jeff Bezos’ Blue Origin, Microsoft’s Azure Space, and Lonestar Data Holdings have already begun pilot deployments.
None of these efforts has yet produced a commercial-scale orbital data centre.What are the challenges?The GPU chips powered by electricity from solar panels become hot. Now space may be cold, and common sense may suggest it is a natural sink for the heat. However, space is also empty and its vacuum eliminates convection.
Originally reported by The Hindu. This story has been edited and re-presented by BRIC Team.
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