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

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

Earth is home to some truly unbelievable life forms. From transparent animals and deep-sea nightmares to creatures with blue blood, multiple hearts, and bizarre body shapes, evolution has produced ...

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 ...