ANCHORAGE, Alaska—Northern light enthusiasts got a surprise mixed in with the green bands of light dancing in the Alaska skies: A light baby blue spiral resembling a galaxy appeared amid the aurora for a few minutes.
The cause early Saturday morning was a little more mundane than an alien invasion or the appearance of a portal to the far reaches of the universe. It was simply excess fuel that had been released from a SpaceX rocket that launched from California about three hours before the spiral appeared.
