6 Mysterious Natural Phenomena That Science Still Can’t Fully Explain

The Green Sky Before A Tornado

You’re driving home, and suddenly the sky turns a sickly, unnatural green. Your first thought? Aliens. Your second? A tornado is coming. And you’d be right – sort of. While a green sky doesn’t always mean a twister is imminent, it’s often a sign of a massive, hail‑filled thunderstorm. The phenomenon happens when sunlight passes through thick, water‑heavy storm clouds, scattering light in a way that creates a haunting green tint. It’s nature’s way of saying: “Get inside. Now.” Scientists understand the mechanics, but seeing it in person still feels like the sky is warning you of something otherworldly.