A ring of 13 carbon atoms and two chlorine atoms has a remarkable molecular structure that means you would have to go around the loop four times to return to your starting position ...

Blow up a long balloon and two things happen: it gets longer and it gets wider. Now imagine a living cell that inflates itself under enormous pressure and yet only grows longer, never adding width.

Start off in any direction and fly through the universe. Out of our solar system, beyond the edge of the Milky Way, through the forest of galaxies that make up our Local Group into the wilderness of ...