“It was inexplicable,” said Nicholas McAlister, a fund-raiser at the University of Pennsylvania who witnessed it in the night ...

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

At approximately 9 p.m. Tuesday night, residents of several East Coast states looked up and saw a swirling, glowing light ...

Want a say in the news? Email Claudia at todayinpa@pennlive.com to have your thoughts on the stories covered here or on ...

What was the mysterious white spiral flying in the night sky as stargazers looked up during the Perseid meteor shower peak ...

There’s a magical place in Pennsylvania where the water mirrors the sky so perfectly you’ll wonder if you’re looking up or down, where trails wind through forests that change their wardrobe with each ...

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Pennsylvania residents witness a stunning celestial event: swirling lights in the sky. Discover what caused this mesmerizing ...

More likely a rocket launch than a UFO, but that didn't keep eagle-eyed viewers from sharing some great photos with us.

National Weather Service staff at its Moon office got a few odd calls Tuesday night about a strange-looking blue swirl moving across the sky. “We had a couple of calls on the overnight shift,” said ...

A number of people in eastern and south-central Pennsylvania reported seeing a strange light in the sky on Tuesday evening.