What happens when a comet collides with a gas giant? In July 1994, Shoemaker-Levy 9 slammed into Jupiter in a spectacular series of 21 explosions, creating fireballs bigger than Earth itself. This was ...

But radio, infrared, and ultraviolet measurements have revealed a whole zoo of carbon compounds in comets, some of which are essential building blocks in all known ... comet such as Shoemaker Levy ...