BEAMLINE FOR SCHOOLS (BL4S) is an official competition organised by CERN, the European Organization for Nuclear Research, in Geneva, Switzerland. It is open for all high-school students around the world.

The competition invites teams of high-school students to propose a scientific experiment that they want to perform. Because of the maintenance of CERN's accelerators starting at the end of 2018, the winning experiments in 2019 will be run at DESY in Hamburg, Germany, a world-leading accelerator centre. The first prize for the winning teams is a trip to DESY to carry out their proposed experiments at a fully-equipped accelerator beamline. There are additional prizes for shortlisted teams and certificates for all participants. How to take part? Have a look here and get inspired by our new video:

Take part in hands-on scientific experiments on-site at DESY, a world-leading research institute! Through BL4S, CERN and DESY offer a great opportunity for students to learn, make new discoveries and apply their knowledge into new settings. Get inspired by our videos and previous winners, join our BL4S Facebook group and stay tuned for news!


In the sixth edition 178 teams from 49 countries took part and submitted a proposal.

This year the two winning teams will be invited to DESY in October.


Would you like to be inspired by our previous editions? To discover more about the previous winners click here.

Winner participants from the Beamline for schools competition in 2018.


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High-school students performing their proposed experiments at CERN.


27 May 2019 — This year's shortlisted teams of BL4S 2019 are now published – who will win the sixth edition?
20 May 2019 — This year's evaluation process of all received proposals is in its final stages
3 May 2019 — In the sixth edition of this successful competition one lucky team submitted the 1000th proposal


We are grateful to all our sponsors and supporters whose contributions help us make possible the Beamline for Schools Competition. 

To support the Beamline for Schools project, as well as other CERN projects that have an impact on society, donate through the CERN & Society website.