Innospace releases preliminary results of launch failure
The South Korean rocket startup Innospace last week released its first preliminary results of its investigation into the December 22, 2025 failure during the first orbital launch attempt of its Hanbit-Nano rocket.
Based on video footage and preliminary data available to date, the vehicle achieved approximately 30 seconds of nominal ascent. During its passage through cloud layers, communication between the vehicle and ground systems was lost. Subsequently, the vehicle sustained structural damage of an undetermined cause, leading to separation into multiple sections and indications of first-stage engine thrust termination. As a result, the vehicle lost propulsion and attitude control and entered free fall, separating into the first stage, second stage, and smaller debris fragments.
As the calculated Instant Impact Point (IIP) remained within the launch site’s designated safety perimeter, and to prevent debris dispersion and residual hazards, the Flight Termination System (FTS) was activated in accordance with procedures pre-coordinated with Brazilian safety authorities. The launch vehicle was detonated at the point of ground impact, resulting in early mission termination.
In plain language, the rocket broke up about 30 seconds after lift-off, and as its pieces hit the ground engineers activated the self-destruct software.
The company says it hopes to try again in ’26, launching once again from Brazil’s Alcantera spaceport. I suspect it will take longer than that to pin down the cause of the rocket’s “structural damage” and fix it. The data so far suggests a fundamental flaw that require a major redesign.
The South Korean rocket startup Innospace last week released its first preliminary results of its investigation into the December 22, 2025 failure during the first orbital launch attempt of its Hanbit-Nano rocket.
Based on video footage and preliminary data available to date, the vehicle achieved approximately 30 seconds of nominal ascent. During its passage through cloud layers, communication between the vehicle and ground systems was lost. Subsequently, the vehicle sustained structural damage of an undetermined cause, leading to separation into multiple sections and indications of first-stage engine thrust termination. As a result, the vehicle lost propulsion and attitude control and entered free fall, separating into the first stage, second stage, and smaller debris fragments.
As the calculated Instant Impact Point (IIP) remained within the launch site’s designated safety perimeter, and to prevent debris dispersion and residual hazards, the Flight Termination System (FTS) was activated in accordance with procedures pre-coordinated with Brazilian safety authorities. The launch vehicle was detonated at the point of ground impact, resulting in early mission termination.
In plain language, the rocket broke up about 30 seconds after lift-off, and as its pieces hit the ground engineers activated the self-destruct software.
The company says it hopes to try again in ’26, launching once again from Brazil’s Alcantera spaceport. I suspect it will take longer than that to pin down the cause of the rocket’s “structural damage” and fix it. The data so far suggests a fundamental flaw that require a major redesign.
