What are the stages of the Nebular theory?

Does the earth rotate in a circle around the sun or a oval? Which planet are considered the inner planets? How can astronomy help you if you get lost? How did the little dipper get in the sky? What energy transformation is responsible for the fiery reentry of the space shuttle into earth's atmosphere? What instruments are used for seeing cloud patterns and movements? What is the delphic stone? What is the darkened area of a sunspot called? What phase of the moon happens about 21 days after a new moon? What does the name Gaona mean? What statements correctly describes Theocritus? How did trade play important role in the growth of exploration? What color is the medium temperature stars? What is the microscope's objective lens also known as? What is bigger the diameter of the sun or the distance between earth and moon? How The chart shows the placement of Jupiter's moons for the first nine days of February 1996. How would Jupiter and its moons appear on February 7 as seen through a telescope? What does globular mean? Why do the Philippines not experience snow? How long was Apollo 11? What does the moon look like on February 1st 2010?

What are the stages of the Nebular theory?