Kairos, a small, solid-fuel rocket made by Japan's Space One, exploded just seconds into its inaugural launch on Wednesday as the firm tried to become the first Japanese company to put a satellite in orbit.

The setback for Space One and the rocket industry in Japan comes as the government and investors ramp up support for the sector amid a national security buildup and skyrocketing demand for commercial satellites.

The 18-metre (59 ft) rocket exploded five seconds after lifting off, leaving behind a large cloud of smoke, a fire, fragments of the rocket and sprays of firefighting water near the launch pad on the tip of mountainous Kii peninsula in western Japan, visible on local media livestreams.

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JUST IN: Space One rocket in Japan explodes after takeoff during its “inaugural launch.” 
 
The Kairos rocket was attempting to make Space One the first Japanese company to put a satellite in orbit. (Reuters) 
 
The 59 ft, four-stage solid-fuel rocket was launched from the Kii… <a href="https://t.co/BJAAWXGsCy">pic.twitter.com/BJAAWXGsCy</a>
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"The rocket terminated the flight after judging that the achievement of its mission would be difficult," company president Masakazu Toyoda said.

Space One did not specify what triggered self-destruction after the first-stage engine ignited - or when the company would launch the next Kairos - only pledging an investigation into the explosion.

The company said that the launch is highly automated, requiring only about a dozen ground staff, and that the rocket self-destructs when it detects errors in its flight path, speed, or control system that could cause a crash that endangers people on the ground.

"We don't use the world 'failure', because each trial brings us ... new data and experience for another challenge," Toyoda told a news conference.

There were no injuries near the launch pad, and the fire has been extinguished, Shuhei Kishimoto, governor of Wakayama prefecture, told reporters.

Kairos carried an experimental government satellite that can temporarily replace intelligence satellites in orbit if they fall offline.

Space One had planned the launch for Saturday but postponed it after a ship entered the nearby restricted sea area.

<h2>'Space courier services'</h2>

Although Japan is a relatively small player in the space race, the nation's rocket developers are scrambling to build cheaper vehicles to capture booming demand for satellite launches from its government and from global clients.

Tokyo-based Space One was established in 2018 by a consortium of Japanese companies: Canon Electronics, the aerospace engineering unit of IHI, construction firm Shimizu and the state-backed Development Bank of Japan. Two of Japan's biggest banks, Mitsubishi UFJ and Mizuho, also own minority stakes.

Shares in Canon Electronics fell as much as 13 per cent, while IHI shares were down as much as 2 per cent after Wednesday's failed launch.

Space One wants to offer "space courier services" to domestic and international clients, aiming to launch 20 rockets a year by the late 2020s, Toyoda has said. Although the company delayed Kairos' inaugural launch window four times, it said orders for its second and third planned trips have been filled, including by an overseas customer.

Kairos is composed of three stages of solid-fuel engines and a liquid-fuel post-boost stage engine, attempting to carry payloads of up to 250 kg to low-Earth orbit.

Space One does not disclose Kairos' launch costs, but company executive Kozo Abe said it is "competitive enough" against American rival Rocket Lab.

Rocket Lab has launched more than 40 Electron small rockets from New Zealand since 2017 at roughly $7 million per flight. Several Japanese companies have used Electron for their missions, including radar satellite makers iQPS and Synspective, and orbital debris-removal startup Astroscale.

<h2>Revitalising an industry</h2>

Partnering with the United States, Japan is seeking to revitalise its domestic aerospace industry to counter technological and military rivals China and Russia.

Last month, state-funded Japan Aerospace Exploration Agency (JAXA) successfully launched its new cost-efficient flagship rocket, the H3. JAXA completed a historic "pinpoint" moon landing this year, and the H3 is scheduled to carry about 20 satellites and probes to the space by 2030.

Before that, however, JAXA had faced a series of setbacks. H3's inaugural flight failed last year, as did another flight of a smaller rocket, Epsilon, in 2022. In July 2023, an upgraded engine for Epsilon exploded at JAXA's testing site.

In 2019, Interstellar Technologies conducted Japan's first privately developed rocket launch with its MOMO series, although without a full-scale satellite payload.

The government last year promised "comprehensive" support for space startups with technology critical for national security, as it seeks to build satellite constellations to ramp up intelligence capabilities.

Japan's defence ministry on Friday said it had struck a deal with Space One to boost its rockets' payload by experimenting with fuel-efficient methane engines.

"Rocket Lab, too, did not achieve its mission at the inaugural (Electron) flight, but it went on to launch three rockets in its second year," Toyoda said. "We can't stop here – we need to compete with this company."

Kairos, a small, solid-fuel rocket made by Japan's Space One, exploded just seconds into its inaugural launch on Wednesday as the firm tried to become the first Japanese company to put a satellite in orbit.

Kairos, a small, solid-fuel rocket made by Japan's Space One, exploded just seconds into its inaugural launch on Wednesday as the firm tried to become the first Japanese company to put a satellite in orbit. The setback for Space One and the rocket industry in Japan comes as the government and investors ramp up support for the sector amid a national security buildup and skyrocketing demand for commercial satellites. The 18-metre (59 ft) rocket exploded five seconds after lifting off, leaving behind a large cloud of smoke, a fire, fragments of the rocket and sprays of firefighting water near the launch pad on the tip of mountainous Kii peninsula in western Japan, visible on local media livestreams. Watch the video here: JUST IN: Space One rocket in Japan explodes after takeoff during its “inaugural launch.” The Kairos rocket was attempting to make Space One the first Japanese company to put a satellite in orbit. (Reuters) The 59 ft, four-stage solid-fuel rocket was launched from the Kii… pic.twitter.com/BJAAWXGsCy — Collin Rugg (@CollinRugg) March 13, 2024 × "The rocket terminated the flight after judging that the achievement of its mission would be difficult," company president Masakazu Toyoda said. Space One did not specify what triggered self-destruction after the first-stage engine ignited - or when the company would launch the next Kairos - only pledging an investigation into the explosion. The company said that the launch is highly automated, requiring only about a dozen ground staff, and that the rocket self-destructs when it detects errors in its flight path, speed, or control system that could cause a crash that endangers people on the ground. "We don't use the world 'failure', because each trial brings us ... new data and experience for another challenge," Toyoda told a news conference. There were no injuries near the launch pad, and the fire has been extinguished, Shuhei Kishimoto, governor of Wakayama prefecture, told reporters. Kairos carried an experimental government satellite that can temporarily replace intelligence satellites in orbit if they fall offline. Space One had planned the launch for Saturday but postponed it after a ship entered the nearby restricted sea area. 'Space courier services' Although Japan is a relatively small player in the space race, the nation's rocket developers are scrambling to build cheaper vehicles to capture booming demand for satellite launches from its government and from global clients. Tokyo-based Space One was established in 2018 by a consortium of Japanese companies: Canon Electronics, the aerospace engineering unit of IHI, construction firm Shimizu and the state-backed Development Bank of Japan. Two of Japan's biggest banks, Mitsubishi UFJ and Mizuho, also own minority stakes. Shares in Canon Electronics fell as much as 13 per cent, while IHI shares were down as much as 2 per cent after Wednesday's failed launch. Space One wants to offer "space courier services" to domestic and international clients, aiming to launch 20 rockets a year by the late 2020s, Toyoda has said. Although the company delayed Kairos' inaugural launch window four times, it said orders for its second and third planned trips have been filled, including by an overseas customer. Kairos is composed of three stages of solid-fuel engines and a liquid-fuel post-boost stage engine, attempting to carry payloads of up to 250 kg to low-Earth orbit. Space One does not disclose Kairos' launch costs, but company executive Kozo Abe said it is "competitive enough" against American rival Rocket Lab. Rocket Lab has launched more than 40 Electron small rockets from New Zealand since 2017 at roughly $7 million per flight. Several Japanese companies have used Electron for their missions, including radar satellite makers iQPS and Synspective, and orbital debris-removal startup Astroscale. Revitalising an industry Partnering with the United States, Japan is seeking to revitalise its domestic aerospace industry to counter technological and military rivals China and Russia. Last month, state-funded Japan Aerospace Exploration Agency (JAXA) successfully launched its new cost-efficient flagship rocket, the H3. JAXA completed a historic "pinpoint" moon landing this year, and the H3 is scheduled to carry about 20 satellites and probes to the space by 2030. Before that, however, JAXA had faced a series of setbacks. H3's inaugural flight failed last year, as did another flight of a smaller rocket, Epsilon, in 2022. In July 2023, an upgraded engine for Epsilon exploded at JAXA's testing site. In 2019, Interstellar Technologies conducted Japan's first privately developed rocket launch with its MOMO series, although without a full-scale satellite payload. The government last year promised "comprehensive" support for space startups with technology critical for national security, as it seeks to build satellite constellations to ramp up intelligence capabilities. Japan's defence ministry on Friday said it had struck a deal with Space One to boost its rockets' payload by experimenting with fuel-efficient methane engines. "Rocket Lab, too, did not achieve its mission at the inaugural (Electron) flight, but it went on to launch three rockets in its second year," Toyoda said. "We can't stop here – we need to compete with this company."

Watch | Japanese firm Space One's Kairos rocket explodes on inaugural flight

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Watch | Japanese firm Space One's Kairos rocket explodes on inaugural flight