The Universe is basically a cloud of dust and particles. This particular dust-ball we live on is roughly 25,000 miles in circumference. Every once in a while a Cosmic Event, the scientific name for something we don’t understand, will cause what is known as a gravitational collapse, another scientific name for something we don’t understand. At this point all the dust and particles within proximity of the cosmic event’s gravitational pull, will begin to be sucked in to a giant dust-ball called a Nebula, and with every dust-ball the gravitational pull of the forming Nebula becomes more powerful. What started as a tiny microscopic event now expands light years across and contains dust-balls 25,000 miles in circumference.