Japan’s new H3 space rocket fails to blast off

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Japan’s new H3 space rocket has failed to blast off because two booster engines did not ignite following the successful ignition of the flagship space vehicle’s main engine, media reported.

During a live stream of the scheduled launch on Friday, the H3’s main engine cut off after the launch countdown reached zero, leaving the 57-metre (187 ft) high rocket standing on its launch pad at the Tanegashima Space Center on Tanegashima Island in the country’s southwestern Kagoshima prefecture.

Japan Aerospace Exploration Agency (JAXA) mission manager Masashi Okada said later at a news conference, as he wiped tears from his eyes, that the launch was aborted during countdown as a result of safety features that functioned properly.

Okada said ignition of the main SE-9 engine was successful, but the subsequent electric signal to ignite a pair of auxiliary booster SRB-3s was not sent after an unidentified abnormality was detected in the process. He said the problem was not related to the engines but most likely an electrical system.

“We will investigate the cause as soon as possible and do our utmost to try again,” Okada said. He did not give a timeline but said he hoped to resolve the problem and attempt another launch before the current launch window closes on March 10.

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If the launch had been successful, the H3 would have carried Japan’s ALOS-3 land observation satellite into orbit. The observation satellite, which JAXA said is a key tool for disaster-management imaging, is also equipped with an infrared sensor designed to detect North Korean ballistic missiles.

An H3 rocket carrying a land observation satellite is seen after it fails to lift off after apparent engine failure at the Tanegashima Space Center in Kagoshima Prefecture, southwestern Japan February 17, 2023, in this photo taken by Kyodo. Mandatory credit Kyodo via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. MANDATORY CREDIT. JAPAN OUT. NO COMMERCIAL OR EDITORIAL SALES IN JAPAN

Japan built the H3 to enhance its independent access to space and bolster its chances of capturing a bigger share of the global launch market from rivals, including Elon Musk’s SpaceX. It was designed to put government and commercial satellites into orbit and ferry supplies to the International Space Station.

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