Exploring Earth. In this exercise, we use the Starry Night Enthusiast™ program to examine Earth as seen from space. Select Favourites  Solar System  Earth Earth from the menu. Stop time flow. You can...

Exploring Earth. In this exercise, we use the Starry Night Enthusiast™ program to examine Earth as seen from space. Select Favourites
 Solar System
 Earth
Earth from the menu. Stop time flow. You can use the Zoom buttons in the toolbar to zoom in and zoom out. (You can remove the astronaut’s feet if desired by selecting View Feet). You can also rotate Earth with the Location Scroller by holding down the Shift key while holding down the mouse button and moving the mouse (Hold down the left mouse button on a PC.) a. Use the Location Scroller to move Earth around until you see the Sun almost behind it. From what you now see of Earth’s phase, explain how you can easily find the Sun in searches for it at other planets. Go to Mars by selecting Favourites
 Solar System
 Inner Planets
 Mars from the menu. Stop time flow and, using what you have just learned, put the Sun behind the planet, thereby confirming your explanation above. b. Return to Earth by selecting Favourites
 Solar System
 Earth
 Earth from the menu. Use the Location Scroller to move Earth around until South America is visible. Set the Time Flow Rate to 3000x and allow time to flow until the terminator (the dividing line between the day and night sides of Earth) is over Eastern Brazil, at the eastern edge of South America. Stop time. As seen from eastern Brazil, is the sun rising or setting? Explain.