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Hack an Exoplanet is an inquiry-based activity suggested for students aged 14 to 19 years old, organised by ESA Education. Students can choose between three challenges with different levels of complexity. The data used for this project was collected specifically for this educational activity, by the Cheops satellite, a real space mission. 

This activity is recommended for students between the age of 14-19 years old.  

Hack an Exoplanet is an educational activity developed by ESA Education in collaboration with ESA Science, with support from members of the Cheops Mission Consortium and the ESERO network. 

Yes! The hackathon activities are recommended for 14-19 years old, but younger students can still get involved.

Cheops has observed KELT-3b and TOI-560c in early 2023.
KELT-3b was observed 22 January 23:20 CET and TOI-560c was observed 23 January 13:12 CET.

Cheops has observed K2-141b and K2-141c in September 2023.

Spot Cheops in the sky whilst it records data!

The Hack an Exoplanet platform provides a variety of engaging materials about exoplanets, including:

General information about exoplanets can be found in the Resources section of the website. To find out more about the two targets that Cheops will observe, KELT-3b or TOI-560c, check out their individual case files.

If you are entering a hackathon through a school or national organiser, then you may be able to participate in your own language. Check with the organiser of your hackathon. A list of national contact points is available here.

If you are participating in the official ESA Hack an Exoplanet virtual hackathon event, then your participation will be in English.

If you experience problems with your entry or have further questions, please contact the ESA Education Team by writing an e-mail to When applicable, you can also contact your local national organiser.


No, the hackathon materials are freely available on the platform in 21 language. You can access the materials here.

You do not need to sign up to participate in the ESA Hack an Exoplanet virtual hackathon event.