The 11th edition of the CASSINI Hackathon challenges participants to leverage European space technologies to develop solutions that protect and manage our planet’s most vital resource: water. This event brings together coders, problem-solvers, and innovators from across Europe to develop cutting-edge solutions that can address some of today’s challenges.

This edition’s challenges focus on:

• Securing equitable and efficient access to water
• Tracking and preventing water pollution
• Disaster risk monitoring

It will take place between 24 - 26 April 2026 simultaneously in 10 different locations (Austria, North Macedonia, Bulgaria, Norway, Hungary, Poland, Italy, Romania, Netherlands, Spain).

Who can apply

• Students, entrepreneurs, engineers, designers, researchers.
• Be 18 years old or older at the start of the Hackathon (24th of April).
• Residents either in the European Union (any country) or in a non-EU country associated with Horizon Europe (or in ongoing negotiations for an association). 
• All teams must have at least 3 team members and can go up to a maximum of 8 members.

How to apply

Register here

Grants

Cash prizes up to 9,000€ (1st: 5,000€, 2nd: 3,000€, 3rd: 1,000€) plus 6 months of mentoring.

Deadline: 19 April 2026

Read more here.

Opportunity offered by: European Commission