It wasn't the fury of Thor or an alien portal or the Second Coming of Hey-Zeus. Here you have the explanation of the mysterious giant spiral that happened yesternight in Norway, computer simulation included.
The video shows a rocket getting out of fuel and spiraling out of control, which looks exactly like the photos and videos online.
Norwegian astronomer Knut Jørgen Røed Ødegaard says it's 99.9% safe to say that it's a rocket out of control, while some newspapers and TV channels are quoting Russian military sources, confirming that this is a failed Bulava missile launched from a nuclear submarine in the White Sea.
The Norwegian defence has confirmed that, even while they have not admitted the failure, the Russian Navy alerted them about the tests prior to the giant spiral appearing in the skies. And if that wasn't enough to convince everyone, here are two images of the missile trails being blown away by the wind, at dawn:
Sorry people, no alien invasions. Yet. [Thanks Jon Trygve and everyone who wrote]