So if life could have taken the other path, why didn't it? Is uniform "handedness" a secret ingredient in the recipe for life ...

Is uniform "handedness" a secret ingredient in the recipe for life, and more specifically, did it have to turn left? Did the bias toward left-handed amino acids begin in the cosmos, or did it ...

A big question in the origin of life on Earth is why it is based solely on "left-handed" amino acids. Studies on asteroid Bennu's chemical building blocks deepens the mystery.