The weekly briefing on space-based solar power
Space Solar News

Solar energy beyond Earth — space-based solar power, spacecraft power systems and lunar surface energy. Weekly, engineering-grade, hype-free.

Latest briefing · November 7, 2026

Orbital Matter's 2028 In-Space 3D-Printed Solar Array Is a Specific Bet Worth Watching

Orbital Matter and EnduroSat plan a 2028 mission to 3D-print a 5 kW solar array in orbit — here's what that proves and what it doesn't.

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November 7, 2026

What Orbital Matter's In-Space 3D Printing Mission Gets Right About Solar Power Architecture

Orbital Matter's 2028 mission to 3D-print a 5 kW solar array in orbit with EnduroSat is the most concrete in-space manufacturing solar demo on the near-term calendar.

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November 6, 2026

The Moon Race Has a Power Problem: What NASA's 2028 Timeline and China's 2030 Bid Mean for Lunar Surface Energy

With NASA targeting 2028 and China aiming for 2030, the lunar surface power gap is no longer a distant engineering problem — it's a live procurement decision.

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November 5, 2026

Stellar Alpina's Rotating Detonation Lander Is a Surface Power Story in Disguise

Swiss startup Stellar Alpina's Morpho lunar lander and Monarch orbiter reframe cislunar transport as a surface-power delivery architecture worth watching.

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November 4, 2026

Dark GPUs Need Power Now — And Space Solar Is Being Asked to Answer

Up to 15 GW of stranded AI compute may be sitting powerless; space-based solar is entering the pitch deck as a credible fix.

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November 3, 2026

Radiant's Kaleidos Microreactor Clears DOE Safety Review — What It Means for Lunar Surface Power

The first commercial nuclear microreactor to win DOE full-power approval signals a credible alternative to solar arrays for always-on surface power on the Moon.

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October 31, 2026

What Flexell Space Just Got Right About In-Orbit Solar Cell Validation

Flexell Space's two-mission demo plan with Satoro puts next-gen space solar cells on Falcon 9s in 2027 and 2028 — here's why the sequencing matters.

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October 31, 2026

Flexell Space and Satoro Plan Two Falcon 9 Rides to Prove Next-Generation Solar Cells Work in Orbit

Two in-orbit demos aboard SpaceX Falcon 9 in 2027–2028 will test whether Flexell Space's next-gen solar cells can survive and perform in the real radiation environment.

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October 30, 2026

NASA's 70-Landing Lunar Decade Hinges on Power Infrastructure Nobody Has Built Yet

NASA wants 70+ Moon landings by 2035, but sustained surface operations demand kilowatts of reliable power that no mission has yet delivered.

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October 29, 2026

MP Space's AUD $23M Round Signals a Maturing Market for In-Space Power Storage

An Australian battery startup's first flight and 500-spacecraft order book reveals where serious money is moving in the in-space power stack.

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