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Visible across the Northeast, the bright, pill-shaped light was the exhaust plume from the United Launch Alliance's Vulcan ...
Theories suggest the display came from either the European Space Agency's Ariane 6 rocket or the United Launch Alliance's ...
Tight launch windows There are only a few days each month that the Vulcan rocket can take off. That's not the fault of ULA, but a constraint imposed by its payload.
What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak ...