The aurora borealis has been visible in southern Canada due to peak solar activity, a phenomenon that might continue for several more years.

Anchorage-based photographer saw something wild — a sudden, bright light on the northern horizon that quickly started to take on a spiral shape as it drew nearer. The spiral “appears to be rocket engine exhaust from a SpaceX Transporter-7 mission that launched on the Falcon 9 about three hours earlier in California.”

Northern Finland was illuminated by a blazing fireball on Thursday night, which experts said was either a meteor or space trash.