Updated October 2026
TL;DR
NASA’s GeneLab for High Schools (GL4HS) is a free, 12-week online summer program where you learn to analyze real space biology data at your own pace. This review covers what you actually do in it, whether it’s free, who can get in, how many hours it takes, how the Capstone works, when the 2027 application opens, and whether it’s worth it. The last application window was one month long and capped at 1,000 students, so it pays to be early. If you’d like to lead a project of your own afterward, apply to Horizon.
Every year, up to 1,000 high schoolers spend their summer learning to analyze data from NASA space biology experiments, without leaving home. That’s GeneLab, a free online program from NASA’s Ames Research Center. You learn at your own pace through recorded lectures and coding notebooks. If you want more, you can team up with three other students to pitch a research proposal to NASA scientists. It’s a rare chance to see how real research data is handled, and it rewards students who can manage their own time. This review covers what the program involves, who can apply and whether it’s worth your summer. To compare it with other remote options, see our list of online biology research opportunities for high school students.
Quick facts
Location: Online, almost entirely self-paced
Cost: Free, with no stipend (as of the 2026 program)
Program dates: TBA (previous cohort: June 1 to August 28)
Application window: TBA (previous cohort: opened February 15, closed March 15 or at 1,000 applications)
Eligibility: U.S. citizens and permanent residents at U.S. high schools who are rising juniors or seniors, or entering college as freshmen that fall, with at least one high school biology course and a 3.0 unweighted GPA
What do you actually do in NASA GeneLab for High Schools?
You spend the summer learning to make sense of biological data from space experiments, mostly through recorded lectures and coding notebooks. NASA describes the program as an introduction to how living systems respond to spaceflight, studied through omics research. Omics sounds intimidating, but it just means looking at huge sets of biological data at once, like every gene active in a tissue sample.
You’ll also pick up bioinformatics, which is using computer tools to sort through that data and find patterns worth asking about. The exercises live in JupyterLab Notebooks, which are interactive pages where code, data and your own notes sit side by side. The data itself comes from NASA’s Open Science Data Repository, the same public archive researchers use.
Is NASA GeneLab for High Schools free?
Yes, completely. NASA says there’s no cost for any student accepted into the program.
The one thing that changed recently is pay. Earlier versions of GL4HS offered stipends, but NASA says no stipends will be offered starting with the 2026 program. So it’s free to attend, but it won’t replace a summer job.
Who can apply to GL4HS, and is it hard to get in?
If you meet the eligibility rules and apply early, your odds are good. NASA requires that you:
- Are a U.S. citizen or permanent resident attending a U.S.-based high school
- Are a rising junior or senior, or about to start college as a freshman that fall
- Have taken at least one high school biology course (AP Biology isn’t required)
- Have an unweighted GPA of at least 3.0
- Have a computer with a stable internet connection
What decides most applications is the calendar.
NASA says every eligible applicant in 2025 was accepted until the program reached its cap of 1,000 students. In 2026, the window closed after one month or as soon as 1,000 applications came in, whichever happened first, and NASA turned people away once it was full. Have a scanned PDF of your transcript ready before the window opens so you aren’t scrambling on day one.
How many hours a week does GL4HS take?
Plan on about 20 hours a week for all 12 weeks. That’s NASA’s own estimate, and it covers lectures, reading, notebook exercises, quizzes and the optional office hours.
The upside is flexibility. Nearly everything is on demand, so you can do your hours early in the morning, late at night or in one big Saturday push. The downside is the same flexibility. Nobody checks whether you watched this week’s lecture, so you need to hold yourself to a schedule. The weekly office hours are optional, but they’re the closest thing to a live teacher you’ll get, and it’s worth showing up.
If you finish every notebook and lecture, you earn a digital completion certificate at the end.
What happens in the GL4HS Capstone?
The Capstone is an optional, application-based team project where you analyze real data and pitch a research proposal to a panel. Only students who finish the Basic course can apply, and you form your own team of four. NASA takes at most 45 teams, and Capstone students have to attend a live three-hour orientation on the program’s first day.
Here’s how the stages fit together:
| Stage | Who it’s for | What you do | What you walk away with |
|---|---|---|---|
| Basic course | Everyone accepted | Recorded lectures and JupyterLab Notebooks, with optional weekly office hours | A digital completion certificate |
| Capstone Project | Up to 45 teams of four, by application | Analyze Open Science Data Repository data and build a hypothesis-driven research proposal | A Capstone Certificate after presenting at the Capstone Showcase |
| Proposal Competition | The best 8 Capstone teams | Write a formal proposal for a final round | A chance for the top three teams to win an all-expense-paid trip to present at the ASGSR conference |
Source: NASA GeneLab for High Schools, 2026 program details.
If the Capstone is what draws you in, start networking from the first week. NASA runs open networking sessions during the Basic course to help students form teams. In the most recent program, the Capstone Showcase was set for around September, so it can bump into the start of school. If proposal writing is new to you, our guide to turning a paper into a competition submission covers a lot of the same skills.
When does the GL4HS application open for 2027?
NASA hasn’t announced 2027 dates yet, so the last cycle is your best guide.
| Milestone | Previous cohort |
|---|---|
| Applications open | February 15 |
| Applications close | March 15, or as soon as 1,000 come in |
| Acceptance notices | Rolling, through April 30 |
| Course access instructions | By May 15 |
| Program runs | June 1 to August 28 |
| Capstone Showcase | Around September |
Source: NASA GeneLab for High Schools.
The easiest thing you can do right now is join NASA’s GL4HS mailing list. Send an email to arc-gl4hs@mail.nasa.gov with “subscribe” in the subject line, and you’ll hear when the window opens. Since seats go fast, getting in on day one matters more than taking extra weeks to polish your application.
Is NASA GeneLab worth it for high school students?
For most high schoolers curious about biology, data or space, it’s well worth it.
It costs nothing, it uses real NASA data, and it teaches tools most people don’t touch until college. Very few free programs let you say you spent a summer working with spaceflight biology data.
It isn’t the right fit for everyone, though. You might be happier somewhere else if:
- You want time in a lab. Everything here happens on a computer. If bench work is what you’re after, read our guide on how to find a research lab as a high school student.
- You need a paid summer. NASA dropped stipends starting with the 2026 program.
- You work best with a personal mentor. Office hours are shared and optional, so no one is assigned to you.
- You don’t meet the eligibility rules. The citizenship, grade, biology and GPA requirements are firm.
If any of those sound like you, our list of free online STEM research programs has plenty of other options. And if GL4HS gets you hooked on biology, these biology research topics are a good place to find your next question.
From NASA data to a paper with your name on it
GL4HS teaches you how researchers work with data. The next step is asking a question nobody has answered yet, and seeing it through to a finished paper.
Horizon pairs you one-on-one with a PhD scholar or professor from universities like Oxford, Stanford and Columbia for several months of guided research. You can choose from more than 300 topics, including gene editing and CRISPR, neuroscience and protein biophysics, and you’ll finish with a research paper of about 20 pages that’s entirely your own. Apply to Horizon or join the next info session to see how it works.
Frequently asked questions
NASA doesn’t list coding as a requirement. You need one high school biology course and a 3.0 unweighted GPA. The program teaches you to work in JupyterLab Notebooks as you go, so you’ll learn the tools along the way.
The Capstone is optional, so you can still finish the Basic course and earn your completion certificate. NASA runs networking sessions during the course to help you find three teammates, so joining those early gives you the best shot.
Possibly, since GL4HS is self-paced. It still takes around 20 hours a week, so be realistic before you add anything else. Our list of free online STEM research programs can help you compare what fits.
A one-on-one mentored program lets you choose your own topic and go much deeper. Horizon pairs you with a PhD scholar or professor to take your question all the way to a finished research paper.
Resources
External sources
- GeneLab for High Schools (GL4HS), NASA
- GeneLab for High Schools Application Instructions, NASA
- American Society for Gravitational and Space Research (ASGSR)
More from Horizon
- 15 online biology research opportunities for high school students
- Free online STEM research programs for high school students
- Biology research topics
- How to find a research lab as a high school student
- How to turn your paper into a competition submission
- Can you do real research online in high school?
- STEM research topics for high school students
Image Source: NASA logo