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AI · alternatives · 2026

24 alternatives to Solar System Explorer

Walk in the cosmos

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 3 we have checked on their own sites, 3 of them free or with a free tier. Solar System Explorer launched in 2021; newer entries below may have overtaken it.

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    Atlas of Spacefree▲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…

    2025 · atlasof.space · its alternatives →

  3. 3GI

    Just for fun and self education, I've built this over a weekend to teach myself why orbits exist, not just show planets going around. Something that was never clearly explain to me in school. It opens with a guided tour that builds the idea up step by step: two bodies and the equal/opposite force, inertia (the Sun is removed and Earth just drifts straight), then "an orbit is falling and continuously missing," cosmic velocities with a little rocket, Voyager 1 & 2's real gravity assists (the clock runs the actual 1977–1989 dates so the planets orbit into their grand-tour alignment and the…

    Jun 2026 · qunabu.github.io · its alternatives →

  4. 4

    Live NASA solar imagery in 12 wavelengths, the moon phase tonight for 200+ cities, and real space weather. Free on iOS and Android. No ads, no signup.

    Apr 2026 · lumara-space.app · its alternatives →

  5. 5
    AstraPixelsfree tier, from $5/mo▲267

    ​​A pixel-art solar system at its real current positions.​

    Aug 2026 · astrapixels.com · its alternatives →

  6. 6

    Live map of the solar system, rocket launches, news and more

    Aug 2026 · realtimesolarsystem.com · its alternatives →

  7. 7

    A real-time, ultra-realistic 3D solar system in your pocket

    Jul 2026 · play.google.com · its alternatives →

  8. 8

    The Solar System in your home.

    2017 · apps.apple.com · its alternatives →

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    Space out with planets in Google Maps

    2017 · google.com · its alternatives →

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    The World’s first 3D astronomical clock & stunning skyguide

    2020 · cosmic-watch.com · its alternatives →

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    A simple viewer for planetary orbits in our Solar System

    2021 · 8planets.app · its alternatives →

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    3D movements telling you the time to the next sunrise

    2024 · apps.apple.com · its alternatives →

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    There▲129

    🪐 Your cosmic compass through the galaxy

    Dec 2025 · thereapp.site · its alternatives →

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    3D simulator that models planets, orbits, propulsion systems

    Nov 2025 · solar.chriswest.tech · its alternatives →

  15. 15AR
  16. 16MS

    Did this a few years ago. Seems apropos. Sources and more here: https://github.com/EngineersNeedArt/Mooncraft2000

    Apr 2026 · mooncraft2000.com · its alternatives →

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    A tediously accurate scale model of the solar system

    2014 · joshworth.com · its alternatives →

  18. 18

    A fork of Solar System Live that generates animated videos showing planetary orbits over any date range. Tracks orbital statistics (how many times Earth was lapped by Mercury/Venus, or lapped outer planets) and overlays dates/ages on each frame. Example: Einstein's lifetime (1879-1955) showing 76 years of solar system evolution. Built with Python + Pillow + ffmpeg, runs locally with Lighttpd. https://github.com/simondorfman/solar_system_live

    Jan 2026 · github.com · its alternatives →

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    Visualize our Solar System in augmented reality 🌌

    2017 · apps.apple.com · its alternatives →

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    Interactive global satellite images

    2017 · planet.com · its alternatives →

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    Walk among the planets via geospatial augmented reality

    2016 · aireal.io · its alternatives →

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    Gravity WebGL experiment in the Solar System

    2016 · github.com · its alternatives →

  23. 23

    This is a little hobby project that I hope you enjoy. You can see where the International Space Station is now, with live HD video from NASA, on a realistic 3D globe. The positions of the sun and moon are also accurate, though distances aren't to scale. The clouds are also near-realtime; I span that out into a separate project at https://clouds.matteason.co.uk, where the cloud images I create from EUMETSAT data are freely available. I've got more features almost ready to go, like the ability to turn off all UI, toggleable clouds and turning off the day/night cycle I'd love for…

    2024 · iss.matteason.co.uk · its alternatives →

  24. 24HO

    3D gravity and space Simulator. Explore and play around with the force of gravity in the context of an array of scenarios from our solar system and beyond. You can add planets, delete the Sun, change the value of the gravitational constant or simply lean back and enjoy the dazzling beauty of the pen

    2018 · thehappykoala.github.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →