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AstroGrid
Explore the entire universe in your browser, in real 3D
AstroGrid turns your browser into a spaceship. Fly from Earth's surface to the edge of the observable universe, all in real 3D. • 119K real stars (HYG catalog) with accurate B-V colors • NASA JPL orbital mechanics for the Solar System, in real time • 14K deep-sky objects, black holes with gravitational lensing, pulsars, supernovae, and gravitational-wave events • Runs entirely client-side. No install, no signup. Built for the curious students, educators, and space nerds.
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About AstroGrid on Product Hunt
“Explore the entire universe in your browser, in real 3D”
AstroGrid launched on Product Hunt on April 30th, 2026 and earned 106 upvotes and 11 comments, placing #13 on the daily leaderboard. AstroGrid turns your browser into a spaceship. Fly from Earth's surface to the edge of the observable universe, all in real 3D. • 119K real stars (HYG catalog) with accurate B-V colors • NASA JPL orbital mechanics for the Solar System, in real time • 14K deep-sky objects, black holes with gravitational lensing, pulsars, supernovae, and gravitational-wave events • Runs entirely client-side. No install, no signup. Built for the curious students, educators, and space nerds.
On the analytics side, AstroGrid competes within Education, Space and Science — topics that collectively have 88.4k followers on Product Hunt. The dashboard above tracks how AstroGrid performed against the three products that launched closest to it on the same day.
Who hunted AstroGrid?
AstroGrid was hunted by John Lee - AstroGrid. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of AstroGrid including community comment highlights and product details, visit the product overview.
Hey everyone,
Quick context on why I built AstroGrid : I wanted to make something for anyone who's curious about the universe, whether you're a student, a self-learner, a teacher, or just someone who likes staring at space at 2am. Every explainer I could find was either a flat textbook diagram or a YouTube video you'd zone out of in 30 seconds. I wanted something you could just grab, tilt, spin, and fly through.
It kept growing, and now it's a 3D atlas of the universe you can explore in your browser. No install, no signup. Built with classroom and self-learner use in mind.
A few things you can actually figure out by using it
Everything is based on real astronomical data (NASA JPL for the Solar System, the HYG catalog for stars, OpenNGC for deep-sky objects, LIGO data for gravitational wave events, etc.), so what you're seeing isn't decorative. It's where those things actually are.
If you teach, or you're just curious about space, I'd really love to hear what's confusing, what's missing, or what you wish you could do next. That feedback is what shapes the next update.
Thanks for taking a look.