In this dynamic talk, Ashtesh Kumar—Co-founder and CTO of Manastu Space—shares his journey of revolutionizing satellite propulsion with eco-friendly technology. An IIT Bombay alumnus, Ashtesh is at the forefront of creating sustainable solutions that reduce space debris and environmental impact in aerospace. Blending innovation with responsibility, he presents a bold vision for a greener, cleaner trajectory into space—proving that sustainability can thrive even beyond our atmosphere. Ashtesh Kumar is the Founder and CTO of Manastu Space, a pioneering startup developing green propulsion systems for satellites. Holding a Bachelor's degree in Mechanical Engineering from IIT Bombay (2017), Ashtesh's entrepreneurial journey began during his final year. He co-founded Manastu Space with Tushar Jadhav, driven by a shared vision to transform the space-tech industry. With expertise in innovative technology development, Ashtesh is steering Manastu Space towards a sustainable and efficient space exploration future. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx