The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

Across the world’s oceans, hydrophones are picking up intricate patterns of clicks, whistles, and pulses that do not map neatly onto any human language. Researchers are now treating these underwater ...

A strange X-ray beacon from deep space has revived a decades-old mystery and opened a window onto one of the universe’s most violent possibilities. Astronomers now suspect that this flicker in the ...