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The Vulcan, the United Launch Alliance's newer rocket, got off the ground from Florida on its first national security mission for US Space Force.
The first two Vulcan test flights last year used a configuration of the rocket with two strap-on boosters to add an extra ...
Theories suggest the display came from either the European Space Agency's Ariane 6 rocket or the United Launch Alliance's ...
Visible across the Northeast, the bright, pill-shaped light was the exhaust plume from the United Launch Alliance's Vulcan ...
What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak ...