Photo: Cassini (NASA)

Ask an Astronomer

We've created this page so that students and members of the public who are studying or have an interest in Astronomy have a source of knowledge.
Ask a Question See Responses
Your name1: (optional)

Your grade level: (optional)

Your email2: (optional)

Your question:

Prove you're a human:
How many moons does the Earth have?


1 – We only use your first name in posts, to respond more personally.

2 – We only use your email to send you a notification when we've answered your question.