Lectures from Nobel Prize winners, professors and innovators working at the forefront of science, with ideas and questions that go beyond the school or university curriculum.
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Key Facts
The 68th LIYSF at a Glance
14 days, 18 to 31 July 2027
Residential STEM programme in London
Ages 16 to 21
Students from school to early university level
500 Students
From more than 90 countries
Imperial College London
South Kensington, central London
Science Bazaar
Present your own project to an international audience
£3,450
Programme fee: accommodation, meals and core activities included
About LIYSF
What is the London International Youth Science Forum?
The London International Youth Science Forum (LIYSF) is an international STEM forum and residential summer school for students aged 16 to 21.
Established in 1959, LIYSF brings young people from different nations together through a shared passion for science. In 2027, the 68th LIYSF continues that tradition with 14 days in London, where students explore current scientific research, meet leading scientists, visit major research institutions and exchange ideas with other young people from around the world.
LIYSF is an impartial, not-for-profit social enterprise with a mission to give students a deeper insight into science and how it can be applied for the benefit of humankind. We are honoured to have HRH The Princess Royal as our Royal Patron, and LIYSF has the support of UNESCO.
1959and still inspiring young scientists
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See LIYSF in Action
Two weeks of science, discovery and friendship with students from around the world at Imperial College London.
Why Choose LIYSF?
What Makes LIYSF Different?
LIYSF combines serious scientific learning with international exchange. Students do not simply study STEM subjects. They meet the people advancing them, visit the places where research happens and contribute their own ideas.
47 scientific visits to leading university departments, laboratories and research centres in London, Oxford and Cambridge, taking science beyond the lecture theatre.
Explore Scientific VisitsPresent your project at the LIYSF Science Bazaar, share your ideas with an international audience and build confidence in scientific communication.
Discover the Science BazaarMeet students from more than 90 countries who share your curiosity, and make friendships and collaborations that last well beyond the programme.
Read Student StoriesProgramme Experience
Two Weeks of Science, Discovery and International Exchange
Trust and Credibility
Advancing Global Scientific Dialogue Since 1959
For more than six decades, LIYSF has created opportunities for young people to explore science together across national and cultural boundaries.
International science, lasting impact
See LIYSF’s ImpactLIYSF’s long-term impact extends beyond the two weeks in London. Alumni have gone on to further study, research and STEM careers around the world.
Established in 1959More than six decades of international STEM exchange
24,500+ LIYSF Alumni WorldwideA global network of future scientists and changemakers
Royal PatronHRH The Princess Royal
Not-for-profitAn impartial, accredited social enterprise
Our Partners
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Find the Information You Need
Students, parents and teachers can move directly to the information that matters most to them.
Thinking About Joining LIYSF?
Find out who can apply, what you will experience, what the programme costs and how to submit your application.
Information for Students
Information for Parents
Learn about accommodation, supervision, safety, programme costs, travel and what students can expect from their time in London.
Visit the Parent Toolkit
Information for Teachers and Schools
Find student eligibility information, group application guidance, programme resources and information for schools considering sending students to LIYSF.
Visit the Teacher ToolkitFees and What’s Included
LIYSF 2027 Programme Fee
14-day residential programme
£3,450
The participation fee covers the 14-day residential programme in London.
Apply for LIYSF 2027
Included
- 13 nights of accommodation in South Kensington
- Breakfast, lunch and dinner throughout the programme
- Principal lectures and demonstrations
- Specialist STEM sessions
- Core scientific visits and associated travel
- Social programme
- Certificate of participation
Please note: Flights to and from London, visas, personal travel insurance, airport transfers and optional sightseeing activities are not included.
Quick Answers
Frequently Asked Questions About LIYSF
Answers to some of the most common questions about applying to and attending LIYSF.
View All Frequently Asked QuestionsLIYSF 2027 is open to students aged 16 to 21 who have a genuine interest in science, technology, engineering or mathematics. Participants should have a good understanding of written and spoken English. Individual applicants are normally asked to provide an academic reference.
Yes. LIYSF is a 14-day residential STEM summer school for students aged 16 to 21, held each July at Imperial College London. It combines lectures from leading scientists, scientific visits, a research poster session (the Science Bazaar) and a social programme.
The 68th LIYSF takes place from 18 July to 31 July 2027, a 14-day residential programme.
LIYSF is hosted at Imperial College London in South Kensington, central London. Students stay in South Kensington throughout the programme.
Each year the programme features Nobel Prize winners and leading scientists, plus specialist sessions led by researchers and LIYSF alumni. Recent Nobel Prize speakers include Sir Gregory Winter, Sir David MacMillan and John O’Keefe.
The programme includes main lecture demonstrations, four specialist lecture sessions with a choice of 32 lectures, four day visits to university departments, laboratories and research centres, networking and PhD sessions, debates, the Science Bazaar and an active social programme.
The 2027 programme fee is £3,450. It covers 13 nights of accommodation, all meals, the principal lectures, specialist STEM sessions, core scientific visits with travel, the social programme and a certificate of participation. Flights, visas, personal travel insurance, airport transfers and optional sightseeing are not included.
Yes. LIYSF welcomes students from more than 90 countries. Participants arrange their own travel and any visa they need, and we can provide a supporting invitation letter on request.
Yes. LIYSF is an impartial, accredited not-for-profit social enterprise (a community interest company) established in 1959. It has no shareholders, and any profits are re-invested for its community purpose.
Virtual Participation
Can’t Join Us in London?
LIYSF also offers a virtual participation option for students who want to engage with selected scientific content online.
Explore LIYSF VirtualLIYSF 2027
Ready to Join the 68th LIYSF?
Join the 68th London International Youth Science Forum for 14 days of science, discovery and international exchange, meeting leading scientists and sharing ideas with young people from around the world.
Not sure whether LIYSF is right for you? Explore the programme or contact our team before applying.