They're made of light.
Meet Lumina and Spark — two sisters who crossed the universe to reach Earth — their bodies are knots tied in laser light. Join their adventures and discover the mathematics, physics, and wonder woven through the universe all around us.
Choose your path
The Sisters
Who they are, why they came to Earth, and why a little glass necklace matters more to them than anything.
Build a Superhero
Step into their light mirror and watch yourself become a hero — then learn exactly how the trick works.
Their World: Luminara
A magnetosphere planet where energy is life, light is language, and children go to school inside living memories.
Science of Light
Can you really tie light in a knot? (Yes! Scientists have done it.) Find out what's real and what's our story.
Play
Try a simple version of our lenticular printing on your own computer, or solve the Laser Girl island puzzle.
FAQ
Why are they here? Why now? Why can't they go home? The questions everyone asks, answered straight.
Find Us — Open Sauce ’26
Stand in front of the light mirror, meet your superhero self, and take home a flip-print. July 17–19, San Mateo.
Two sisters. One mission.
Lumina
Careful, curious, and calm. She checks the knots twice, reads every warning, and remembers the way home. Her light glows deep green, like starlight through sea glass — and she carries the name of their home world, Luminara.
Spark
Bold, playful, and fast. First through the door, first to try what nobody has tried. Her light burns ember-red and flares to gold when she laughs.
They left a safe, energy-rich world on purpose — to help one that still has a chance: ours. Read their whole story →
Luminara, world of the energy beings
A magnetosphere planet bathed in the light of its blue-white star. Rivers of photons follow the magnetic field lines, cities are patterns of light held in stable resonance, and prism whales swim through the auroral sky. Energy is life. Light is language. Harmony is law.
Explore Luminara →
Real science, clearly labeled
This whole project runs on one rule: we always tell you which parts are Real science that laboratories have actually done, which parts are Almost real(real physics, stretched further than today's labs can go), and which parts are Our story. Scientists tying real knots in real light? That happened. Two glowing sisters flying to Earth? That's ours.
See what's real →Coming to Open Sauce 2026 🛠️
San Mateo County Event Center — Fiesta Building, Dark Area, stand FS.254. Stand in front of our light mirror, see your superhero self appear live, and take home a magic flip-print — made by the two real Laser Girls.
Find the booth →