Question 1
Discuss the features and characteristics of the Sun? Are they thought to be unique to the Sun or are they typical of other stars? How do any of these structures relate to the process of nuclear fusion which is thought to produce the Sun's energy?
Question 2
In the early 1700's Kant suggested there were many galaxies visible from Earth but the idea was not popular because ________.
◦ the "Big Bang" theory did not support that concept
◦ that hypothesis would require that objects travel faster than the speed of light
◦ that hypothesis would require a significantly larger universe than was widely accepted at that time
◦ only modern satellite data supports that point of view
◦ at that time, people generally believed the earth was the center of the universe.
Moon and Earth
Hints of Earth’s Early Appearance
The early hominin evolution
Earth-Moon-Sun Positions during the Spring Tide
Relative Sizes of Dwarf Planets and Earth
Locations of early developmental events.