Space-Time
A 3D universe explorer & astronomy app, in your browser
What it does
Space-Time is a free, browser-based universe explorer and astronomy tool. No account, no ads, no install. You can fly from a planet's surface out to the edge of the observable universe, stand on the Moon or Mars and look up at the real sky for any date, watch real eclipses, and plan tonight's stargazing from your own backyard. It started as a passion project, basically the astronomy tool I wish I'd had in school. I'd love to hear what's confusing, what's missing, and what you'd build next.
Does the same job
all alternatives →- AAAstro App2024 · astro.sshh.io · ▲291
I really like Stellarium and SkySafari but I felt like these are primarily geared towards exploring the sky but not so much "here are the long list of things I want to see, when can I see them tonight and where". There's also not really a great option I've found that combines sky object planning + location weather details while still being free so I built this. The UI's heavily inspired by NINAs sky atlas + Robinhood. Right now you can: View the altitude chart of objects and 3D view Create lists of objects of interest View the annual max/min daily altitude of an object to find the best…
- AOAtlas of Space2025 · atlasof.space · ▲770
Hello HN! Sharing a recent side project of mine, the Atlas of Space, that I built out to explore the Solar System. As a long-time space nerd, I realized recently that I didn't have a good intuition on the scale, speed, and relative orientation of the celestial bodies around us. So over the break I built out a kind of spatial Wikipedia to click around and learn about planets, moons, asteroids, and other bodies orbiting the Sun. The physics is all simulated in the browser using simple Newtonian mechanics. There's a lot left to do from here, including modeling objects in non-Keplerian orbits…
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