Solar System Q&A

Do you know about the phases of the moon--why there's a full moon about once a month and at other times, it's dark? [we see different amounts of the moon lit by the sun, as the moon travels around the earth]

What's the moon called when it's halfway between the sun and earth, with the dark side facing the earth and the sun shining on the other side? [a new moon]

Do you know what a quarter moon is called? [a crescent]

Well, it looks like my daughters are getting interested in the solar system, so I'd better brush up. I'll start with something simple: Astronomy For Kids is about my speed, with simple explanations and lots of pictures.