Malang, East Java, April 12 -- Indonesia's Meteorology, Climatology, and Geophysics Agency (BMKG) said a glowing object seen crossing the sky over Malang District, East Java, was most likely space rocket debris, dismissing speculation on social media that it was a missile.

"Not a missile; preliminary analysis suggests the object was very likely space debris from a rocket burning as it descended through Earth's atmosphere," Ricko Kardoso, head of BMKG's Malang Geophysics Station, said in Malang on Sunday.

He said the man-made phenomenon displayed characteristics of a so-called "space jellyfish," in which rocket exhaust plumes reflect sunlight and form a luminous trail across the sky.

"The space jellyfish effect appears as stretched ligh...