Content warning: this story includes discussion of self-harm and suicide. If you are in crisis, please call, text or chat with the Suicide and Crisis Lifeline at 988, or contact the Crisis Text Line ...

For over a quarter of a century, there has not been a moment when all humans were together on planet Earth, and that’s thanks ...

With its long wavelength, near-infrared light is hardy enough to survive the limestone surroundings in the cavern: “The ...