Follow this link to skip to the main content

Frequently Asked Questions

Frequently Asked Questions:

Who can participate in the essay contest?

This contest is open to all students in the U.S. in grades 5 to12. Parallel contests are being run in other countries around the world. For a list of participating countries, visit the international pages.

Can home-schooled students enter this essay contest?


Can students at a Museum, Science Center, Astronomy Club or After-school program participate?

Yes, but please have your program coordinator contact us at for the details on how to submit.

My country doesn’t have a contest, but I would like to participate. What can I do?

- If your country has a space agency, ask if they would like to host a Cassini Scientist for a Day contest in your country.

- Some countries don’t have national coordinators, but there may be a contest available to students in your region.

- You can always do the research and write the essay anyway. It’s good practice for writing essays in college or university, even if you don’t write the essay for the purpose of entering the contest.

Can I choose to write about more than one image?

- No, you have to choose just one imaging target in your essay. Being able to describe which target you think will return the most interesting scientific data is one of the main points of this activity.

English is not my first language. Does my essay have to be written in English?

- Each country that participates in the essay contest may choose the language(s) in which entries will be accepted. It depends in part on the languages the contest judges can read. Check the rules for your country’s version of the contest. The contest for students in the United States is only accepting essays in English.

I live in the United States, and I’m enrolled in school, but I’m not a United States citizen. Can I still send my entry to enter the U.S. contest?


Can students from different grades work together?

Yes, but you must indicate the grade level for each student who wrote the essay, and the essay will be judged in the grade category of the oldest student who collaborated on the essay.

I have given this assignment to my classes as a project. Can I send all the essays I collected?

You are welcome and encouraged to use this contest as a class assignment. Please read the essays and send us the top three essays from each of your classes for us to judge.

After submitting your students' best essays, please send an e-mail to (or to your country's national coordinator, if you're not in the United States) with a list of all the students in your classes who wrote essays for the contest. We will mail you certificates of participation for all your students who wrote essays.

Is grammar important?

Yes, your peers – the jury judging your essay – must be able to comprehend your argument.

Who do I contact if I have questions?

Send an email to or to your country’s national essay contest coordinator, if you’re not in the United States.