What Is the Breakthrough Junior Challenge?
The Breakthrough Junior Challenge is a global science communication competition that asks students aged 13–18 to explain a big idea in mathematics, life sciences, or physics in a short video — under 90 seconds. Founded in 2015 by Julia and Yuri Milner through the Breakthrough Prize Foundation, it is one of the most generous STEM competitions in the world, with a total prize package worth $400,000.
The challenge is free to enter and open to students from every country. It rewards clarity, creativity, and the ability to make complex science genuinely understandable — a skill that top universities and future scientists value enormously.
The Prize — One of the Largest in Youth Science
- $250,000 post-secondary scholarship for the winning student
- $100,000 for the winner's school to build a state-of-the-art science lab
- $50,000 for the teacher who inspired the winning student
- Total package: $400,000
The lab prize makes this competition uniquely impactful — winning doesn't just change your own future, it transforms science education for an entire school community.
Eligibility — Who Can Enter?
- Age: 13–18 years old. For the 2026 challenge, you must be 13 by May 11, 2026 and not yet 19 by October 1, 2026.
- Location: Open worldwide, with some exclusions for countries under U.S. economic sanctions.
- Language: Submissions must be in English, including all scripts and voiceovers.
- Format: Individual entries only — no group or team submissions.
- Parental consent: Required if you are a minor.
The Three Subject Areas
1. Mathematics
Explain a mathematical concept, theorem, or problem — from prime numbers to topology — in a way that makes it click for a general audience.
2. Life Sciences
Cover biology, genetics, neuroscience, ecology, or any topic in the life sciences. KCS Foundation's health, hygiene, and education projects intersect naturally with this category.
3. Physics
From quantum mechanics to cosmology, make the fundamental laws of the universe accessible and exciting.
How Judging Works
The Breakthrough Junior Challenge uses a multi-stage evaluation process:
- Peer-to-Peer Review: Entrants review and score a sample of other entries, providing feedback and helping identify the strongest videos.
- Popular Vote (Limmer Challenge): The public votes on videos, generating engagement and surfacing crowd favourites.
- Selection Committee: A panel of scientists, educators, and Breakthrough Prize laureates evaluates finalists on four criteria: engagement (is it compelling?), illumination (does it make the concept clear?), creativity (is the approach original?), and difficulty (is the concept genuinely challenging?).
Timeline — Planning Your Entry
- May: Challenge opens. Choose your concept and start scripting.
- June–September: Film, edit, and refine your video. The best entries go through many drafts.
- October 1: Submission deadline (2026 deadline).
- October–November: Peer review and popular vote.
- December: Winners announced at the Breakthrough Prize ceremony.
How to Create a Winning Video
Pick the Right Concept
Choose a concept that is genuinely difficult to explain — the judges reward difficulty — but that you deeply understand. A topic you've encountered in a KCS Foundation STEM project, like how digital literacy bridges the rural education gap, can be framed through a physics or life-sciences lens.
Script for Clarity, Not for Show
The best videos use analogies, visuals, and a clear narrative arc. Avoid jargon. Imagine explaining the concept to a curious 12-year-old.
Use Strong Visuals
Animation, demonstrations, whiteboard sketches, and real-world footage all work. You don't need expensive equipment — a smartphone and free editing software are enough. What matters is the idea.
Keep It Under 90 Seconds
Every second counts. Cut anything that doesn't serve the explanation. Tight, focused videos consistently outperform longer, rambling ones.
How KCS Foundation Projects Support Your Entry
A KCS Foundation partnership gives you authentic material for a compelling science video:
- Real-world context: Explain the physics of solar panels powering a rural computer lab, or the biology behind community health initiatives.
- Documented evidence: Use real beneficiary data and field photos to ground your explanation in lived impact.
- A credible angle: Judges remember students who connect abstract science to real human problems — exactly what KCS Foundation projects provide.
Final Advice
The Breakthrough Junior Challenge rewards students who can make the complex feel simple. Start early, iterate on your script, test your video on friends and family, and refine until the concept clicks. A 90-second video that genuinely illuminates a hard idea is one of the most powerful things you can put on a university application — and it could win you $250,000.
Frequently Asked Questions
What is the Breakthrough Junior Challenge?
The Breakthrough Junior Challenge is a global science video competition founded in 2015 by Julia and Yuri Milner through the Breakthrough Prize Foundation. Students aged 13–18 explain a complex concept in mathematics, life sciences, or physics in a short video (under 90 seconds) for a chance to win a $250,000 prize package.
What is the prize for the Breakthrough Junior Challenge?
The winner receives a $250,000 post-secondary scholarship. In addition, the winner's school receives a $100,000 state-of-the-art science lab, and the teacher who inspired the winner receives a $50,000 prize — bringing the total prize package to $400,000.
Who is eligible to enter the Breakthrough Junior Challenge?
Anyone aged 13–18 from anywhere in the world. For the 2026 challenge, you must be 13 by May 11, 2026 and not older than 18 (not yet 19) by October 1, 2026. Submissions must be in English. Homeschooled students and students with disabilities are welcome.
How does the Breakthrough Junior Challenge judging work?
Entries go through a peer-to-peer review, a popular vote (Limmer Challenge), and evaluation by a Selection Committee of scientists and educators. Videos are judged on engagement, illumination, creativity, and difficulty of the concept explained.