Story highlights The initial launch was successful but then communication systems failed

TIhe ignition of the second booster was terminated and the rocket fell into the sea

(CNN) Japan's attempt to launch one of the smallest-ever rockets into space has ended in failure.

The 9.5-meter (32-foot) rocket lifted off around 8:30 a.m. local time Sunday from the Uchinoura Space Center in southwestern Japan, according to state broadcaster NHK

The rocket was carrying a micro-satellite that is 35 centimeters (13 inches) tall and weighs 3 kg (6.6 lbs.).

However, according to the Japan Aerospace Exploration Agency (JAXA), communication systems malfunctioned after the rocket launched, causing the ignition of the second booster to be terminated. The rocket fell into the sea southeast of Uchinoura.

The launch, which was delayed from earlier this week because of weather, was supposed to be a proof of concept for Japan's micro-satellite and mini-rocket technology, which JAXA hopes to commercialize as private companies seek cheaper options that are easier to put into orbit.

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