AN abandoned RAF site dubbed Britain’s ‘Area 51’ is a magnet for UFO hunters, urban explorers and conspiracy theorists who ...

Erik Irmer has been documenting the spread of invasive plant and animal species that disrupt native ecology across Europe. He focuses on humans’ interactions with these plants and animals. Aliens is p ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...