Theories suggest the display came from either the European Space Agency's Ariane 6 rocket or the United Launch Alliance's ...

Stargazers on the lookout for meteors were treated to an extra nighttime spectacular on Tuesday night as spirals appeared in the sky along the East Coast.

These linkups happen when several planets appear to line up in the night sky at once. Such parades are fairly common, ...

What if the strange, glowing spiral hovering over Massachusetts was not a UFO, but a byproduct of advanced rocketry? Tuesday night, residents of western Massachusetts to Maryland looked up to see a ...