Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

Over hundreds of thousands of years, humans somehow evolved a type of intelligence found nowhere else in the animal kingdom, at least on Earth. According to the most famous theory describing the ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex ...