A mysterious swirl of light seen in the night sky over parts of Alaska, Yukon, and the N.W.T. on the weekend was so odd and striking for those who saw it, it even managed to briefly upstage the aurora borealis.
But the spectacular phenomenon has a very earthbound explanation — it was apparently a cloud of unspent fuel from a SpaceX rocket.
“We had no idea what was going on — ‘Oh my gosh, are we seeing a UFO? Or what’s happening?'” recalled Talia MacDonald, who spotted it in the wee hours of Saturday morning on the remote Dempster Highway in northern Yukon.
“It was a bit spooky, because
