Some experts theorized that an object spotted in the night sky over Philadelphia was a United States Vulcan rocket launch ...

While many Southwestern Pennsylvania residents were looking skyward Tuesday night to catch a glimpse of the Perseid meteor ...

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What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak and Vulcan rocket launch?

That's what people all over the Philadelphia area wondered on Tuesday night after spotting a mysterious, glowing orb in the night sky. A bright orb surrounded by a faint, glowing mist was spotted over ...

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Instead, the twisting white swirl that sent social media alight was a fuel dump from a rocket launch, EarthSky authors said. The website that features stories about all things space and the night sky ...