Are humans unique and alone in the vast universe? This question—summed up in the famous Drake equation—has for a half-century been one of the most intractable and uncertain in science.
Symbols don't always have to be part of the equation to understand math, according to cognitive neuroscientist Elizabeth Brannon.
When new life develops, a tiny ball of initially identical cells has to form the different body parts of the mature organism. Sixty years ago, Alan Turing proposed that this body patterning is achieved by two types of signaling ...
Is there life on other planets, somewhere in this enormous universe? That's probably the most compelling question we can ask. A lot of space science and space missions are pointed directly at that question.