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[Phys-L] Red Sprites

Not too long ago, the very existence of sprites was controversial.
There were anecdotal reports of observations, and that's about it.

However .... Nowadays there are more than a few pictures of them,
which you can find by googling. There are also youtube videos."red sprite"&tbm=isch&tbs=isz%3Al

Some nice examples of sprite pictures:

An accessible discussion of some open physics questions is here:


I mention it in this forum because it is an example of current physics that
students can more-or-less relate to. You might think that lightning and
thunderstorms would have been figured out by now, but they haven't.

A useful resource is the Nova documentary "At the Edge of Space" previously

Including the epic 13-minute clip showing how science is done, now relocated

PBS/Nova page: