This is absolutely legit and incredible. Probably somehow connected to the intense solar activity. This is a genuine Fortean phenomenon alright. Shame how every idiot now thinks 'space aliens' (discounting endless other magical and supernatural possibilities) when the see anything amazing like this. CIA done their job well on the masses.
Oh and not to be a dick. But it showed up on the 17th apparently...
http://www.cornwalllive.com/8203-watch-sightings-of-suspected-ufo-caught-on-film-across-cornwall/story-30447774-detail/story.html#Yq48hCx6zyQvDmgs.01
...
https://www.youtube.com/watch?v=_JKAHsNpnIA