This week's Friday Brain-teaser from xrefer tests your knowledge of Heavenly Bodies. Answers here:

1. Which planet is known as the Red Planet?
2. Halley's Comet appears how often: every 56, 66 or 76 years?
3. What is the largest planet in the solar system?
4. What is the nearest planet to the earth?
5. Which galaxy does the sun belong to?
6. When the moon passes between the sun and the earth, is this called a "solar eclipse" or a "lunar eclipse"?
7. Which planet was discovered in 1930 by US astronomer Clyde Wilhelm Tombaugh?
8. Which of the nine major planets is closest to the sun?
9. The phrase "morning star" is normally applied to which planet?
10. Titan is the largest satellite of which planet?