The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are ...

Assuming our solar system’s newest interstellar object isn’t an alien mothership sent here to menace us, humankind still hasn’t spotted any signs of extraterrestrial life, let alone intelligence — ...

What is the most realistic way we'll detect an alien civilization? If the history of science and astronomy is any guide, ...

Interstellar objects such as Comet 3I/ATLAS can be sent by alien civilizations to "sow" life on Earth. At the same time, it is almost impossible that for the entire time of Earth's existence the Earth ...