From Phil Plait’s Bad Astronomy site we have a video showing the aurora borealis from Tromso Norway on January 24. As you may know, there’s been a lot of activity on the Sun in the last few weeks, and, as Phil explains (and I’ve explained before), solar activity increases the energy of atoms in the Earth’s atmosphere, which subsequently release that energy as a burst of light. Different atoms produce different colors.
It’s an amazing phenomenon, and one that I dearly hope to see before I die.
As a bonus, you can see a shooting star at 2:30. This shows that, unlike most aurora videos, this is in real-time rather than a time-lapse production.