Elon Musk has turned a long-running joke about being an extraterrestrial into a central part of his public persona, even as ...

Skoltech researchers and their colleagues from Ludwig Maximilian University of Munich, Germany, Nanjing University of China, ...

A grainy thermal clip of a sharply defined triangle gliding over the Nevada desert has reignited one of America’s most ...

Dark matter seems invisible, but it makes up most matter, and we have evidence that it gives the cosmos its shape. Now ...

The huge 1,600-mile (2,500-kilometer) wide expanse of the South Pole–Aitken Basin extends considerably onto the far side of ...

More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...

A videographer said he spotted an unusual UFO over the notorious Area 51 military base - the alleged flying object was dubbed ...

A mysterious “Dorito-shaped” aircraft was spotted soaring above the highly classified Area 51 military base in southern ...

Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

A layer of molten rock deep inside some rocky planets may be doing more than shaping their interiors. New research points to ...

Scientists claim that first extraterrestrial contact will be a loud event impossible to ignore, not a subtle signal.

When developers manipulate artificial intelligence systems to bypass ethical safeguards and generate explicit content for ...