On the frozen surface of Jupiter’s moon Europa, a strange, star-shaped scar has become an unlikely focal point in the search ...

What would be the best way for an advanced alien civilisation to make its presence known across the galaxy? It might be to make the planets in its star system dance in mathematical sequence. Many ...

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 ...