Vivid images of glowing "red jellyfish" in the sky above storm clouds have ignited a flurry of online speculation, with some social media users even suggesting extraterrestrial involvement. The ...

When a thunderstorm recently lit up the night sky, cameras captured towering red shapes that looked uncannily like glowing jellyfish hanging above the clouds. The images raced across social media, and ...

Perhaps Arthur Brown, the 78-year-old man from Hermitage, Pennsylvania, with lights and foil on his house to prevent aliens from invading, is a bit extreme in his measures. His neighbors sure think so ...

Extraterrestrial civilisations could give themselves away by the night-time glow of their cities. And if there is one lurking in the outer reaches of our solar system, we are ready to find it.

Add Yahoo as a preferred source to see more of our stories on Google. Every week, Sarah Knapton, our Science Editor, and Joe Pinkstone, our Science Correspondent, demystify your supernatural ...