Ethereal Exploration Guild

Going live tomorrow 8pm - on everything SpaceTech with @etherealxguild’s founder Manu & @prof_nithiya Not only will you hear the monumental engineering problems our startups are solving, but also some of the problem statements that can create exponential value. Set a reminder! You dont want to miss this. x.com/i/spaces/1qxon…

More on: techcrunch.com/2026/01/15/eth…

Every civilization rises because someone chooses to build the tools that move humanity forward. Today, that responsibility is ours. Big thanks to our backers who have now joined the Guild in catalyzing civilizational progress. Status note: Series A Raised.

To clarify, the LOX turbopump, along with the RP1 turbopump, is designed to power our upper-stage engine, Pegasus 2.0.

Status note from the Guild: India’s first privately developed indigenous LOX turbo pump assembly. The additively manufactured turbopump will be tested in Base 001 - our 700,000 sq. ft. semi-cryogenic engine test facility.

Christmas has come early this year.

The future of deep exploration is being built here in India. Grateful for the vision and the ecosystem that makes it possible. @PiyushGoyal @narendramodi @isro @INSPACeIND

How fast they evolve. Meet Pegasus 2.0 – the largest 3D printed Thrust Chamber Assembly in India. Optimized for weight, better performance, and increased engine lifecycle.

India’s space startup, Ethereal Exploration Guild met Amb. Vani Rao. The Bengaluru based group is building India's first reusable space launch vehicle. Wonderful to see India’s talented engineers contributing to our robust aerospace & innovation ecosystem. Many opportunities for 🇮🇳🇮🇹 space collaborations. @EtherealXTech

We’re not catching up. We’re setting the pace. Next time you see test hardware that doesn’t look like this — ask why.

This RP-1 skid is capable of replicating a wide range of mission requirements, enabling us to qualify our engines with global rigor. It’s not just about performance — it’s about raising the bar for how propulsion systems are engineered, tested, and proven.

You're looking at India’s highest-pressure-rated semi-cryogenic RP-1 test setup, engineered for our Pegasus engine development program.

Meet EtherealX, a Bengaluru-based startup founded by Mechanical Engineer and lIAS Scientist-Astronaut Graduate Manu J Nair, Former ISRO engineer Shubhayu Sardar, and Aerospace Engineer Prashant Sharma. #EtherealX #RazorCrestMk1 #ReusableRockets #PrivateRocketEngine #SpaceTech #SpaceMission

They're here to transform the global space industry with India's most powerful private rocket engine! Their mission? To make space launches fully reusable, reducing costs and cutting down the time needed for satellite launches!

Razor Crest Mk-1 - EtherealX's game-changing rocket - will carry up to 24.8 tons into Lower Earth Orbit (LEO) and is fully reusable! That means both the booster and upper stage return to Earth after each launch, making it more efficient than ever.

What powers this rocket's upper stage? The Pegasus Thrust Chamber Assemblies (TCA) - India's first-ever reusable rocket engine! This engine can generate 40 kN of thrust and achieve a specific impulse (Isp) of 293 seconds at sea level.

It's one of the most efficient semi-cryogenic engines worldwide! The Full Flow Segregated Cooling Cycle (FSCC) that runs the engine is a game-changer, making this rocket engine one of the most efficient India has ever developed!

⁠Presenting Bharat's first reusable rocket engine's TCA:

The new watermark of potential we set with this TCA; 1.⁠ ⁠The world’s first RP-1/LOX engine TCA that can also run on an expander cycle. 2.⁠ ⁠⁠India’s first bi-propellant-cooled engine's TCA. 3.⁠ ⁠⁠India’s most powerful indigenously developed semi-cryogenic TCA.

The audacity of exploring new horizons has always fueled our spirit at the Guild. We are proud to unveil the Pegasus Thrust Chamber Assembly (TCA) - Bharat's first reusable rocket engine's TCA.