Welcome to Space Apps Seattle

Home of the Seattle NASA International Space Apps Challenge →
A global hackathon in the city that unites tech and space!

November 13-15, 2026

Now Accepting Participants!

What is Space Apps?

NASA’s International Space Apps Challenge → takes place each year over the course of 48 hours to spark innovation on NASA challenges that benefit missions in space and life on Earth.

Build a team
Pick a NASA Mission challenge or bring your own
Hack away!

You have two days to build your project and put it before the judges.

Winners that become finalists in NASA’s global judging round have a shot at a special tour of Kennedy Space Center!

Come to Space Apps if you are…

A programmer, a data scientist, an engineer, a storyteller, a student, an educator, a project manager, an entrepreneur
You love data and you want to transform NASA’s open data sets into real world applications
You are passionate about space and you want to join in building our future together for the benefit of humanity.
You love hardware. Yes! Hardware projects welcome – Space Apps is more than “apps”! Bring your love for boards and dream up a solution for Earth or your own mission in space.

Build Something Big. From the Top of Seattle.

This year, the top floor of F5 Tower will become home to NASA Space Apps Seattle. With sweeping views across the city and the Pacific Northwest, you’ll have a pretty incredible backdrop for two days of building, collaborating, and tackling challenges using NASA data.

Easy to get to — F5 Tower is in the heart of downtown Seattle, just steps from Link light rail and major transit connections.

Views in every direction — Take in sweeping views of Elliott Bay, Lake Washington, downtown Seattle, and the surrounding mountains from the top floor.

Built for big ideas — Work with your team in a modern, collaborative space designed for brainstorming, building, and presenting.

A venue worthy of the mission — Tackle NASA challenges from one of the most rocket-ship-like workspaces in Seattle. 🚀

NASA Space Apps Speakers & Judges

Thanks to Our 2025 Featured Speaker

Eric Sahr

Eric Sahr is the Optical Navigation Lead Engineer for NASA’s Lucy Mission — the first spacecraft to explore Jupiter’s Trojan asteroids.

Lucy successfully encountered main belt asteroid Donaldjohanson in April 2025, serving as the final dress rehearsal prior to Lucy’s encounters with its first four Trojan asteroids in 2027-2028. Prior to Lucy, he contributed to NASA’s OSIRIS-REx Sample Return Mission, the first US mission to return an asteroid sample to Earth. OSIRIS-REx is a recent recipient of the Collier Trophy, an honor previously awarded to Orville Wright, Pan American Airways, and the Apollo 11 crew.

In recognition of his work on OSIRIS-REx, the main belt asteroid 333036 Sahr is named after him.