* How many miles does light travel in a year?
* How long does it take sunlight to get from the Sun to the Earth?
* How many astronomical units are in one light year?
* How many light years from the Sun is the nearest star?
* The Sun is (about) how many light seconds across?
* How far away is the nearest galaxy to the Milky Way (excluding the Sagittarius dwarf) in light years?
* How far away is the Small Magellanic Cloud (SMC) in light years?
* How far away is the current North Star, Polaris in light years?
* How long does it take light to travel from the Earth to the Moon?
* How many light years is the farthest star in our galaxy?
* What is the term referring to the first day of Spring?
* Which of these best describes a solar eclipse?
* What is the term that refers to Earth orbiting around the sun?
* The shape of Earth's orbit is an oval, or an __________.
* Most of us know that a long time ago, the population believed that the Earth was in the center of the Solar System, and everything revolved around the Earth. What was this model called?