Rockets took Dr. C. V. S. Kiran to the edge of orbit. Now the materials scientist who helped launch India’s first private rocket is betting his second act on a frontier everyone else flew past — the stratosphere.
On the morning of 27 May 2026, a crowd gathered not at Sriharikota but at the Indira Gandhi Stadium in Vijayawada — a cricket ground, of all places — to watch
India enter a new club. A translucent envelope of engineered film, taut with hydrogen, rose silently from the turf and kept rising until it settled nearly 25 kilometres above the Earth, higher than any airliner flies, far below where any satellite orbits. It carried experiments from seven Indian and international partners: biological payloads, propulsion demonstrations, earth-observation sensors, navigation systems. When it held its altitude through the punishing day-night temperature swing of the stratosphere — the trick that defeats ordinary balloons within hours — India became only the fifth nation, after the United States, France, Japan and China, with indigenous super-pressure stratospheric balloon capability.
The mission was called SANA. The company behind it, Red Balloon Aerospace, was barely eight months old — one of the fastest development-to-flight timelines the global near-space sector has recorded. And the man at its helm, watching a career’s worth of conviction ascend into the blue, was Dr. Chakravadhaanula Venkata Sai Kiran.
But they build airships and in fact they are the only private players building this with all manufacturing infrastructure in house.
THE OVERLOOKED MIDDLE
For decades, aerospace ambition has been binary. Aircraft own the air below ten kilometres; satellites own the void above a few hundred. Between them lies a vast, strangely vacant corridor — the stratosphere — too high for planes, too low for orbits, and until recently too difficult for anyone to hold. Kiran’s insight, the one on which Red Balloon Aerospace is built, is that this neglected middle is not a gap but an asset: a place where a platform can loiter for weeks over a single region, seeing what satellites glimpse only in passing, at a fraction of the cost of a launch.
The company’s architecture treats near-space as infrastructure rather than spectacle. VISTA, the super-pressure balloon proven in Mission SANA, is the workhorse for persistent observation and payload testing. ALTIS, a family of long-endurance tethered aerostats, anchors surveillance and communications closer to the ground. HELIX, a hydrogen-lift cargo airship under accelerated development, aims at aerial logistics for terrain that roads and runways cannot reach. Binding them together is DIVE, an AI-driven intelligence engine that turns persistent altitude into persistent insight. The applications read like a wish-list of Indian strategic needs: intelligence, surveillance and reconnaissance; 6G non-terrestrial network backhaul; disaster-zone connectivity when terrestrial towers fail; and sovereign access to a band of sky that no treaty has yet crowded.
“VISTA validates our core near-space platform technology, and this is only the beginning,” Kiran said after the launch — a characteristically restrained sentence for a man whose company had just compressed a national capability into two hundred and forty days.
“One Earth, One Space — wherever we cross the Kármán line, we are from Earth.”
FORGED IN TWO LABORATORIES, TWO NATIONS
If the ascent looks sudden, the preparation was anything but. Kiran is a materials scientist by training and temperament — the discipline that asks not what a machine does, but what it is made of, and what it can therefore endure. After a B.Tech in metallurgy and materials technology at MGIT–JNTU Hyderabad, with a bachelor’s thesis at the Bhabha Atomic Research Centre, he left for Germany, where he would spend more than a decade inside its formidable research establishment: a doctorate from Christian Albrechts University in Kiel on nanocomposite thin films and ion-beam modification, followed by scientific positions at the Karlsruhe Institute of Technology and the Helmholtz Institute Ulm. Along the way he accumulated the quiet credentials of a working scientist — over a hundred peer-reviewed publications, an h-index of 41, a DAAD Award, fellowships of the Andhra Pradesh and Telangana academies of science.
Then he came home, and the trajectory bent from the laboratory toward the launch pad. At ISRO’s Vikram Sarabhai Space Centre, he worked on launch vehicle materials — the unglamorous, unforgiving science of characterisation and reliability on which every mission silently depends — earning the Excellence in Microscopy Award in 2020. When India opened its space sector to private enterprise, Kiran was among the scientists who crossed over, joining Hyderabad’s Skyroot Aerospace as Vice President for materials and strategic initiatives. There he had a hand in history: Mission Prarambh, the flight of Vikram-S on 18 November 2022, the first private rocket ever launched from Indian soil. He has described the Skyroot years as a home of ideas — late-night test campaigns, collective anticipation before every milestone — and the lesson he carried out of them is telling: that innovation lives at the intersection of courage and collaboration.
FROM ASCENT TO ENDURANCE
The move from rockets to balloons puzzled some observers. It should not have. A rocket’s triumph lasts minutes; its payload then belongs to orbital mechanics. Kiran’s new machines are designed for the opposite virtue — endurance. He frames the transition himself not as a departure but a continuum: at Skyroot, vehicles that reach for the stars; at Red Balloon, infrastructure that stays, persistently serving from the stratosphere. In 2025 he was named a Karman Fellow, joining an international cohort of space leaders, and in the same year he co-founded Red Balloon Aerospace in Vijayawada with Sireesh Pallikonda, an aerospace veteran with experience across HAL and SES. The founding team’s advisory bench reaches back into India’s own ballooning heritage — including the TIFR Balloon Facility in Hyderabad, which has quietly flown scientific payloads into the stratosphere for decades.
The economics of the model are as considered as the engineering. A single VISTA flight is a rideshare: multiple customers, multiple experiments, multiple industries aboard one platform, spreading cost and multiplying access. Within three weeks of Mission SANA, the strategy had already crossed borders — a memorandum signed on 17 June 2026 with Armenia’s Bazoomq Space Research Laboratory to jointly execute stratospheric flight campaigns and test advanced payloads, an early signal that India’s near-space capability is exportable.
THE STAKES
The global near-space market is projected to be worth over a hundred billion dollars, and the powers already contesting it are not waiting. High-altitude platform stations figure in every serious 6G roadmap; persistent stratospheric surveillance is reshaping how nations watch their borders and their coastlines. For India, the question is the familiar one — whether to buy this capability, or to build it. Kiran’s answer was flown over Vijayawada in May.
What distinguishes him in India’s crowded new-space firmament is the completeness of the arc: a scientist who has done the fundamental materials research in Germany’s best institutes, the mission-critical engineering inside ISRO, the entrepreneurial fire-walking at Skyroot, and who now writes policy arguments as fluently as journal papers — engaging with IN-SPACe, ISPA and industry bodies on how India should govern the frontier he is opening. His personal credo, borrowed from his reflections on crossing thresholds, is disarmingly simple: one Earth, one space; wherever we cross the Kármán line, we are from Earth.
The Kármán line sits at 100 kilometres, the official doorstep of space. Kiran’s wager is that the most consequential real estate of the coming decade lies well beneath it
— in the calm, cold, sunlit band where his balloons now fly, and where India, at last, has planted a flag of its own.
– Rashmi Kumari
Dr. C. V. S. Kiran is Co-Founder & CEO of Red Balloon Aerospace, Vijayawada, and a Karman Fellow (2025). He was previously Vice President at Skyroot Aerospace and Scientist/Engineer at ISRO–VSSC.
