HONOLULU (AP) — A camera atop Hawaii’s tallest mountain has captured what looks like a spiral swirling through the night sky.

Researchers believe it was from the launch of a military GPS satellite, that lifted off earlier on a SpaceX rocket in Florida.

The images were captured on Jan. 18 by a camera at the summit of Mauna Kea outside the National Astronomical Observatory of Japan’s Subaru telescope.

A time-lapse video shows a white orb spreading out and forming a spiral as it moves across the sky.

The location of the spiral matches where the second stage of the SpaceX rocket was expected to be after launch.