Unastella, a South Korean rocket startup that launched from home, raises $24M

In the dynamic landscape of space exploration, Unastella, a youthful rocket startup from South Korea, has successfully raised $24 million in Series B funding, elevating its total financial backing to $44 million. This surge comes as Asia positions itself to challenge the traditional dominance of the U.S. and China in the launch vehicle market. Founded just four years ago, Unastella gained significant attention after launching its rocket, the Una Express-I, from South Korean territory in May 2025. The startup is dedicated to crafting its own launch vehicles and engines, with a prime focus on providing small satellite launch services. Jae Park, the founder and CEO, emphasized the company’s immediate objective: to validate its technology and business model through upcoming orbital launches, while aspiring for crewed suborbital flights in the longer term. Unastella employs a reliable propulsion system that combines kerosene and liquid oxygen, a mix renowned for its success in historical rocket launches, including SpaceX’s Falcon series. Notably, the company has innovated by replacing traditional turbo pumps with electric motor pumps, a more straightforward and cost-effective alternative validated in past missions by Rocket Lab. While this choice results in a heavier system that limits payload capacity, Park clarified that their focus lies in expedient commercial market entry rather than achieving the most advanced rocket designs. All essential operations, from design to manufacturing, are managed internally by Unastella. The recent UNA EXPRESS-I launch served as a crucial test of their complete system. Park, who has dedicated his career to rocket propulsion, previously contributed to the Nuri rocket project — South Korea's first homegrown orbital launch vehicle — before pursuing his own venture. Though Unastella has not yet begun generating revenue, its funding successes signal strong investor confidence. The Series B round was spearheaded by Altos Ventures, alongside participation from Korea Development Bank, Strong Ventures, and Hana Ventures. Looking ahead, the upcoming UNA EXPRESS-II launch, scheduled for later this year, is a pivotal goal for Park, aiming to reach the 100-kilometer mark, which he believes could facilitate collaborations with major aerospace and defense entities in South Korea. The 22-member team at Unastella has already established valuable connections, including partnerships with Korea’s national space agency, which has utilized components from the UNA EXPRESS-I. The Korea Aerospace Research Institute has also shared technology related to the electric motor pump, further solidifying Unastella's position in the evolving commercial launch sector. Globally, the market for space launches was valued at approximately $15 billion in 2023 and is projected to expand to $41 billion by 2030, according to Grand View Research. While South Korea's commercial launch industry is still nascent, it is rapidly maturing, with Hanwha Aerospace acquiring full rights to the Nuri rocket and other startups like Innospace and Perigee Aerospace emerging as competitors. This competitive landscape extends beyond South Korea, with companies in China, Japan, and Australia also vying for a share of the burgeoning industry. As the private sector takes on a more significant role in space exploration, the future of commercial launches in Asia looks increasingly promising.