Taylor Swift's "Opalite" song is all about finding love again with Travis Kelce, which is fitting since the man-made crystal is associated with transitions. Here's everything to know about the crystal ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: First theorized in 2012, time crystals are similar to ...

Hidden inside a piece of agatized coral lies a natural masterpiece over 20 million years old. When cut open, its interior reveals vivid crystal formations that look like alien landscapes frozen in ...