Was just walking back from the shops and noticed some weird green-ish lights in the sky. Was really confused for a bit like:
Aurora Borealis? In this part of the country?
It was just a light moving linearly in the sky. Took me a while to realise that I'm right next to Gatwick and that's the aircraft guidance light thing. I've been living here for years and that was my first time noticing it.
@wanwan it was clearly steamed clams
tl;dr: thought an alien invasion was taking place. turned out to be my local airport's landing/takeoff lights