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 · August 22, 2026

Elve's TRL-8 mmWave Amplifier Is the Quiet Infrastructure Win Space Solar Needs

A space-qualified 100 W mmWave transmitter at TRL-8 removes one of power-beaming's hardest hardware blockers — here's what it proves and what it doesn't.

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August 22, 2026

What UNSW's Xiaojing Hao Just Got Right About Earth-Made Solar for Space

UNSW's CZTS solar cell breakthrough at 12.4% efficiency signals a real path to cheaper, greener photovoltaics for both Earth and space applications.

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August 21, 2026

Zeno Power's Lunar Night Survival Test: What the Firefly RHU Mission Actually Proves

Zeno Power's radioisotope heating unit boards a Firefly lunar lander no earlier than 2028 — here's what the demo proves, and what it doesn't.

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August 20, 2026

Moon Pits Hold a Steady 17°C — But Who Powers the Base Inside Them?

UCLA's lunar pit temperature data solves a thermal problem and immediately surfaces a harder one: how do you run a permanently shaded habitat?

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August 19, 2026

UK Space Energy Initiative Pushes for Orbital Solar Demo as Launch Costs and Terrestrial Efficiency Close In

The Space Energy Initiative is pressing Westminster for co-funding an orbital space-based solar power demonstrator — here's what the numbers actually say.

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August 18, 2026

Orbital Data Centres Want Space Solar Power — Here's What the Physics Actually Allows

AI data centres consuming the equivalent of 100,000 homes are eyeing orbital solar and radiative cooling — but the engineering constraints are unforgiving.

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August 15, 2026

What Pablo Sobrón Just Got Right About Finding Resources Across the Solar System

NASA's NIAC funding for Pablo Sobrón's Interworld Slingshot concept reframes how we scout energy and mineral resources across the solar system.

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August 15, 2026

Northrop Grumman's Cold-Test Pivot: What Repurposed Gateway Hardware Tells Us About Lunar South Pole Power

Northrop Grumman is stress-testing shelved Gateway hardware at −200°C to prove lunar south pole survival before 2028 astronaut landings.

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August 14, 2026

Moonquakes as Ice Scouts: What Seismic Mapping Means for Lunar Surface Power Siting

A seismic approach to mapping subsurface lunar ice could finally give surface power planners the resource data they need to commit to a site.

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August 13, 2026

Perovskite Cells Meet Starship Economics: A Credible Path to Space Solar's Specific-Power Problem

Two converging data points — printable perovskite cells and Starship's projected cost collapse — finally put SBSP's W/kg math in a defensible range.

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