October's Spooky Space Pictures

The Southern Lights, as captured by an astronaut on the International Space Station, spread an ethereal green hue across our atmosphere.
(Inside Science) -- This October, even the stars seem haunted with mysterious stellar phenomena. The Hubble Space telescope imaged a skull-shaped galaxy collision and a pale, blue visitor from outside our solar system. We also feature stellar pretzels and pumpkins among our weird and wonderful pictures this month.