On the fourth of July, NASA crashed a space probe dubbed Deep Impact into Tempel 1, a nine mile wide comet, to expose its innerds. Comets are ancient conglomerates of rock, ice, and dust that have flown through the solar system for 4.5 billion years. In fact, many scientists believe that comets brought much of the water and other essential ingredients of life to our planet. The mision engineers have designed who vehicles for Deep Impact. The SUV-sized flyby craft contains telescopes, cameras, and the impact craft which is roughly the size of a washing machine. Deep Impact was launched in January and has carried the impactor 83 million miles. The impact craft was launched from the flyby spacecraft about 500,000 miles from the comet and then retreated to record the collision. The impactor transmitted images until it hit with the force of five tons of dynomite creating a crater roughly the size of a football field.