Meteor Over Java Triggers Boom, BRIN Explains the Phenomenon

A spectacular meteor streaked across the sky over Java on the night of July 11, 2026, igniting widespread discussion and social media sharing across Indonesia. Residents in several areas of Java reported witnessing the bright object and hearing a distinct booming sound shortly after its passage. Thomas Djamaluddin, an astronomy and astrophysics researcher at Indonesia's National Research and Innovation Agency (BRIN), identified the event as a large meteor entering the Earth's atmosphere. He explained that meteors, originating from space rocks orbiting the sun, become visible when their path intersects Earth's orbit. "Friction with the atmosphere causes the surface to heat up and glow, appearing as a meteor," Thomas stated in a written release. The glowing process begins around 120 kilometers above the Earth's surface, where the intense heat causes the space rock's material to ablate and erode, producing light. The meteor observed on Saturday night traveled southeast across Java, first appearing over the Java Sea and becoming visible near Bekasi around 9:22 PM Western Indonesian Time. Initially a small white object, it intensified and displayed various colors as it descended into denser atmospheric layers. Residents reported different colors, with a blue appearance noted in Majalengka and a very bright green light seen in Yogyakarta. Thomas attributed these color variations to the meteor's constituent mineral compositions and atmospheric conditions. "The color green is generally associated with the presence of magnesium or nickel, which ignite at high temperatures during entry into the atmosphere," he explained, adding that each chemical element has a unique light spectrum when heated. BRIN estimates the meteor likely lost its speed and ended its trajectory in the Indian Ocean, south of East Java or Bali. The booming sound heard in West Java, specifically in Cirebon and Kuningan, was not an explosion but a sonic boom generated by the meteor traveling at high speeds through the lower atmosphere.

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Friction with the atmosphere causes the surface to heat up and glow, appearing as a meteor