Astronauts have captured two jaw-dropping Earth-based light shows from their lofty perch in space.
One of them is incredibly beautiful, the other incredibly rare.
In case it isn't obvious, the beautiful one is up there. It's an aurora that astronaut Scott Kelly photographed on Saturday evening, or whatever time of day an astronaut calls it. One full "day" on the International Space Station lasts 90 minutes, half in darkness and half in daylight.