Third launch attempt by Japanese rocket startup Space One fails
In another attempt to do the maiden launch its orbital Kairos rocket today, the Japanese rocket startup Space One experienced its third launch failure, with the rocket breaking up about a minute after launch.
The screen capture to the right shows the rocket just after failure. The cloud arc in the upper left is the moment some burst occurred. Within seconds it was clear that the rocket was now in several pieces.
The launch attempt, which took place from the company’s own spaceport, Spaceport Kii, on the southern coast of the main island of Japan, was the third failure in a row, all involving failures of the first stage. The first launch in March 2024 blew up mere seconds after launch. The second attempt in December 2024 failed about 90 seconds after launch when the rocket began to spiral out of control.
This third launch appeared more controlled, but it also occurred only a minute after launch.
Whether the company can survive a third straight failure, none of which got even close to main engine cutoff and stage separation, is unknown. The company has some major investors, including Canon, several major Japanese banks, and the government-owned Development Bank of Japan. While they might stick with the company, it would not be surprising if there was a major shake-up in management.
Japan at the moment has no operational launch capability. Space One is its only private rocket startup, while the two rockets belonging to its space agency JAXA, H3 and Epsilon, are both grounded due to launch failures.
In another attempt to do the maiden launch its orbital Kairos rocket today, the Japanese rocket startup Space One experienced its third launch failure, with the rocket breaking up about a minute after launch.
The screen capture to the right shows the rocket just after failure. The cloud arc in the upper left is the moment some burst occurred. Within seconds it was clear that the rocket was now in several pieces.
The launch attempt, which took place from the company’s own spaceport, Spaceport Kii, on the southern coast of the main island of Japan, was the third failure in a row, all involving failures of the first stage. The first launch in March 2024 blew up mere seconds after launch. The second attempt in December 2024 failed about 90 seconds after launch when the rocket began to spiral out of control.
This third launch appeared more controlled, but it also occurred only a minute after launch.
Whether the company can survive a third straight failure, none of which got even close to main engine cutoff and stage separation, is unknown. The company has some major investors, including Canon, several major Japanese banks, and the government-owned Development Bank of Japan. While they might stick with the company, it would not be surprising if there was a major shake-up in management.
Japan at the moment has no operational launch capability. Space One is its only private rocket startup, while the two rockets belonging to its space agency JAXA, H3 and Epsilon, are both grounded due to launch failures.

