The words "Ask An Astronomer" in yellow with a starscape in the background, cartoon planets to the side and question marks above

Have a question about astronomy and Google isn’t helping?

E-mail your question to and our astronomers-in-residence will do their best to help you.

To help us answer your question promptly and accurately:

  • Keep your question brief.

  • Ask only one question per e-mail.

  • Make sure your question is astronomy-related (if it’s about something in space, it’s probably fair game).

  • We generally will not answer homework or assignment questions.

The current astronomer-in-residence is PhD student Ethen Sun.

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