Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is an animated gif of a solar flare. A solar flare is a massive release of energy that is apparently caused by electrons interacting with the plasma medium of the sun... I swear I didn't lift that from Wikipedia.