WEST LAFAYETTE, Ind. — One of the first things the general of any army does before a battle is scout the terrain. Without seeing and understanding the battlefield, the issues of tactics, strategy and ...

Scientists have decoded the 3D structure of an ancient viral protein hidden in our DNA. The HERV-K Env protein, found on cancer and autoimmune cells, has a unique shape that could unlock new ...

Scientists estimate that the earliest biological entities began to appear on Earth more than 4 billion years ago. "There was a sort of primordial soup from which certain organic molecules were formed.