Join us online in or person at the European Space Agency’s ECSAT centre in Harwell Campus (UK) for GEOSS/HACK 2018, where developers will compete to create data discovery and access tools that solve global challenges.


Participants will have 30 hours to create an open-source data discovery or access application based on a challenge announced at the start of the hackathon.


The challenge will be announced at the start of the hackathon, and will centre around real data needs and globally relevant environmental themes focused on the UN Sustainable Development Goals.


In addition to exposure and promotion to some of the biggest organisations and companies in the industry, our sponsors and organizers are working to create exciting prize packages for our winner(s).


All programming languages and application formats will be accepted, provided they are open source and the code is shared in Github. Participants will produce a 2 minute video explaining their entries for the judges to review.


The European Space Agency offers a wide range of financial, technical and business support to help you launch your idea. Just fill in this questionnaire and send it to, we'll get back to you with some feedback and the next steps.



We have limited seats available for the in person Hackathon, book your ticket in advance here:

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What’s a hackathon?

A hackathon is a hardware and software marathon! At GEOSS/Hack, you will have 30 hours to work towards solving a pressing societal challenge.

What tools can I use?

Any programming language and any solution will be accepted, as long it is open source. You will be asked to share your final output code in Github.

What is the format of the product participants will deliver?

At the end of the challenge, all participants will be asked to present a 2 minute video, uploaded to YouTube, explaining their application.

How will the judging work?

Each entry will be evaluated by a jury of experts on the following criteria:

  • Societal Value: Does it offer a real solution with potential impact on the societal challenge being tackled?
  • Originality / Novelty: Has it been tried or done before? Is the idea disruptive?
  • Use of GEOSS resources and tools: Novelty and creativity in the use of existing resources and functions of the GEOSS Platform
  • GEOSS relevance: Is the idea scalable to other GEOSS projects?
  • Feasibility / Sustainability: Does the idea have a realistic chance of being implemented?
  • Usability and user interface: Is the proposed application user-friendly?

The quality of the code will not be judged in order to allow participants to focus on creating disruptive, innovative applications of GEOSS data.

Who can attend?

Everybody is welcome but seats are limited so register here in advance. Participants are responsible for funding and arranging their own travel and visas.

What should I bring?

Bring your confirmation email and your passport or other national ID for entrance. You’ll also need your laptop and charger for hacking.

Is this event free?

Yes! Just remember to register in advance.

How will I get to ECSAT (ESA)?

For participants attending in person, the closest train station to ECSAT (ESA) is in Didcot - buses can be taken from here to the site. Otherwise there are several buses that can be taken from Oxford (e.g. X34, X32)

How will remote participants join in?

Remote participants will connect via WebEx (register here). Connection instructions will be sent prior to the event.

What's the event schedule?

GEOSS Hack will start at 9:00 (UTC/GMT+1, London) on 3 May 2018, and end at 11:30 on 4 May 2018. Entries will be presented between 13:30-14:30 on 4 May.

Can I sleep at HackGEOSS/ECSAT?

Unfortunately, no - attendants will be expected to leave ECSAT by 5pm on 3 May 2018, and following the presentations on 4 May.



For more information, please contact Christopher Frost-Tesfaye at

Or visit the official page:

27 March 2018
Last updated at 04 April 2018 - 14:17