The 2nd Doctor Opening Titles - Widescreen HD

To me, the Northern Lights seem like a perfect fit.

Videos:
Second Doctor Title Sequence - Doctor Who - BBC
https://youtu.be/FFpuIqDKErk
(C) BBC


Brilliant Time-Lapse of Alaska’s Northern Lights
https://youtu.be/Vdb9IndsSXk
(c) Alexis Coram"