1. Light Years Away.. Questions 1-10 (1 point each) Question 11 (2 points) Total Points (12 Points)

2. 1. A light-year is equal to about A. 6 million miles B. 6 billion miles C. 6 trillion miles D. 6 quadrillion miles 2. The astronomical unit (AU) is a unit of length equal to the distance from A. The Earth to the Sun B. The Earth to the Moon C. The Sun to Pluto D. The Sun to the center of the Milky Way

3. 3. Reflected sunlight from the Moon's surface takes ______seconds to travel the distance to the Earth. A. 1.2 seconds A. 1.2 seconds B. 1.2 minutes B. 1.2 minutes C. 1.2 hours C. 1.2 hours D. 1.2 days D. 1.2 days 4. It takes approximately ___ minutes for light to travel from the Sun to the Earth. A. 6 A. 6 B. 7 B. 7 C. 8 C. 8 D. 9 D. 9

4. 5. The Oort cloud is located A. Between the orbit of Mars and Jupiter A. Between the orbit of Mars and Jupiter B. On the outer rim of our solar system B. On the outer rim of our solar system C. Within the atmosphere of Neptune C. Within the atmosphere of Neptune D. Within the Andromeda Galaxy D. Within the Andromeda Galaxy 6. The Oort cloud, is a spherical cloud of ______ situated about 50,000 AU from the Sun. A. Comets A. Comets B. Asteroids B. Asteroids C. Meteors C. Meteors D. Stars D. Stars

5. 7. Besides our own Sun, what is the name of our nearest star? A. Andromeda A. Andromeda B. Triangulum B. Triangulum C. Orion C. Orion D. Alpha Centauri D. Alpha Centauri 8. Approximately how many light years is the star from our sun? A. 3 A. 3 B. 4 B. 4 C. 5 C. 5 D. 6 D. 6

6. Short Answer: 9. Name the nearest Galaxy 10. Approximately how far was the distance in light years between the nearest and farthest star in the Constellation Orion? 11. Based on current space travel, is it likely we will travel outside of our solar system? Give a detailed explanation as to why or why not.