Asteroids are made up of metals and rocky material, while comets are made up of ice, dust and rocky material. Both asteroids and comets were formed early in the history of the solar system about 4.5 billion years ago. Asteroids formed much closer to the Sun, where it was too warm for ices to remain solid.
Popular history says that it was invented in China, and that Marco Polo brought the knowledge of this food to Venice. The spaghetti Polo encountered (and presumably tasted) in the far east was made from either rice flour or hard wheat flour (long noodles made from both grains exist in eastern cookery).
If your car does start, let it run for a few minutes to help charge the battery further. Unhook the clamps in the reverse order of how you put them on. Be sure to drive your car for a minimum of 10-20 minutes before stopping again so the battery can continue to charge. Otherwise, you might need another jump start.