In this week’s pod, we dive into the world of space-based solar power with Baiju Bhatt, co-founder of Robinhood and now founder of Aetherflux, a new startup aiming to change how we think about energy from space. Baiju takes us on his personal journey from building a public company to tackling one of the most ambitious ideas in the space industry. Drawing on a lifelong passion for space—rooted in his father's work at NASA—Baiju reveals how Aetherflux plans to bring to life a 1970s sci-fi vision: harnessing solar power from space to solve Earth’s most pressing energy challenges.

Baiju shares the challenges and excitement of launching Aetherflux, and how his team is taking a modern approach to an old concept by using advanced laser technology and modular satellite networks. We also discuss:

How Aetherflux is developing the first practical demonstration of space-based solar power
The major potential applications, from powering forward-deployed military bases to remote mining sites
How his experience at Robinhood shaped his entrepreneurial philosophy for solving massive challenges like global energy
Aetherflux’s ambitious timeline for a demo mission in 2026

And much more...

• Chapters •

00:00 - Intro

00:44 - Robinhood to space

03:51 - A father's influence

06:54 - Why Aetherflux?

11:15 - Natural resources in space

12:18 - Why do we need solar power in space?

13:53 - Market and applications for space solar

19:53 - Lasers for power transmission

23:02 - Efficiency gain / loss with space solar

26:06 - Real time power delivery

29:21 - Why not nuclear?

31:37 - Space-based solar for space

32:28 - Safety and regulation

34:37 - Economics of space solar

38:06 - Constellations at scale

39:06 - Early revenue model

40:09 - Competitors

41:05 - Funding

44:05 - An Apple moment

48:19 - Aetherflux team, growth, and goals

49:26 - Space startups that Baiju is excited about

51:20 - Who would Baiju choose to play him in a movie?

• Show notes •

Aetherflux’s website — https://www.aetherflux.com/

Aetherflux’s socials — https://twitter.com/AetherfluxUSA

Baiju’s socials — https://twitter.com/BaijuBhatt

Mo's socials — https://twitter.com/itsmoislam

Payload’s socials — https://twitter.com/payloadspace / https://www.linkedin.com/company/payloadspace

Pathfinder archive — Watch: https://www.youtube.com/@payloadspace

Pathfinder archive — Listen: https://pod.payloadspace.com/episodes

• About us •

Pathfinder is brought to you by Payload, a modern space media brand built from the ground up for a new age of space exploration and commercialization. We deliver need-to-know news and insights daily to 19,000+ commercial, civil, and military space leaders. Payload is read by decision-makers at every leading new space company, along with c-suite leaders at all of the aerospace & defense primes. We’re also read on Capitol Hill, in the Pentagon, and at space agencies around the world.

Payload began as a weekly email sent to a few friends and coworkers. Today, we’re a team distributed across four time zones and two continents, publishing five media properties across multiple platforms:

1) Payload, our flagship daily newsletter, sends M-F @ 9am Eastern

2) Pathfinder publishes weekly on Tuesday mornings (pod.payloadspace.com)

3) Polaris, our weekly policy briefing, publishes weekly on Tuesdays

4) Payload Research, our weekly research and analysis piece, comes out on Wednesdays

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Harnessing the Sun, with Baiju Bhatt (CEO of Aetherflux)

Valley of Depth

Harnessing the Sun, with Baiju Bhatt (CEO of Aetherflux)