Answer all questions correctly for brainliest thanks :) 1. What objects in space, other than stars, make up the universe?

2. What kinds of energy, other than light, do these objects give off?

3. How do scientists answer these and other questions about objects that are so far away?

4. What is a light-year ?

5. What is an electromagnetic spectrum and how does it work ?

6. What is an H-R diagram used to measure ?

7. Do you notice any patterns in the H-R diagram ?

8. How would you describe the Sun's temperature , brightness , and color compared to other stars?

9. What colors are the hottest stars ?

10. Which are brighter : giants , supergiants , or white dwarfs ?