Work · alternatives · 2026
24 alternatives to A Sign In Space – simulating a message from ET
Over the past few months I had the privilege to be part of a team of artists and researchers who assembled a hypothetical message from ET for A Sign in Space, a project founded and directed by media artist Daniela de Paulis. The message was loaded on the ExoMars Trace Gas Orbiter, a spacecraft orbiting Mars. On May 24th it was beamed back to Earth and received by several radio telescopes during a live performance. Since then, a community of people from all walks of life has been attempting to make sense of the message. If you enjoy the challenge, join the discord channel…
A Sign In Space is an art and research project that created a hypothetical extraterrestrial message, loaded it onto the ExoMars Trace Gas Orbiter spacecraft, and beamed it back to Earth via radio telescopes in a live… 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 1 we have checked on their own sites, 1 of them free or with a free tier. A Sign In Space – simulating a message from ET launched in 2023; newer entries below may have overtaken it.
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2020 · callumprentice.github.io · its alternatives →
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Atlas of Spacefree▲770Hello 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 →
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Project Da Vinci▲107Send your video into space on a time capsule in a satellite
2017 · its alternatives →
- 4GI
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 →
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A Billion Dreams▲152Send a name & dream to space on the SpaceX Falcon 9 Rocket
2023 · abilliondreams.org · its alternatives →
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Today my collaborator and I are releasing issinrealtime.org, a multimedia project that plays back every day onboard the ISS. Feedback welcomed. Here's an article that was just released about it: https://www.collectspace.com/news/news-102725a-iss-in-real-t... I also wrote a "making of" post about it here: https://benfeist.com/posts/iss-in-real-time/
Oct 2025 · issinrealtime.org · its alternatives →
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Space Icons▲27877 hand-drawn space icons in multiple graphic versions
2018 · goodstuffnononsense.com · its alternatives →
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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 →
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A secret military project sends signals into space
2015 · amazon.com · its alternatives →
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Cosmic characters for digital products
2022 · spacers.wannathis.one · its alternatives →
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An art project about space exploration
2016 · inspacewetrust.org · its alternatives →
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Spatium▲182Hi there, humans! I'm excited to announce Spatium! I'm a big fan of any topic related to our universe. I'm also a developer, so I've put these things together and I built this new tab Chrome Extension for space lovers, astronomy fans, and science geeks like me. If you enjoyed it, please spread some love <3 FEATURES • Space images • Every day, get a fascinating image of our universe. Enjoy pictures of stars, planets, moons, galaxies, nebulae, comets and more right on your browser tab. • Sun Widget • Find out when the sunrise, sunset, first and last light times will be precisely at your…
2021 · spatium.earth · its alternatives →
- 15IM
I made this site using R3F (https://github.com/pmndrs/react-three-fiber), a React renderer for 3JS (https://threejs.org/). The celestial bodies are Three.JS meshes. I used loaders (namely 'useLoader' from R3F and 'GLTFLoader' from 3JS) to import 3D models, such as International Space Station. More on loading models in R3F: https://docs.pmnd.rs/react-three-fiber/tutorials/loading-mod... I've future plans for this side project. It would be great to hear from the HN community before diving into them. Enjoy! P.S: Getting an empty…
2022 · spaceinbrowser.com · its alternatives →
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The past and the future of space exploration.
2015 · waitbutwhy.com · its alternatives →
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PixelSpace▲68A tediously accurate scale model of the solar system
2014 · joshworth.com · its alternatives →
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AI-Powered Contract Analysis & Electronic Signature Software
Jul 2026 · space-sign.ai · its alternatives →
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Hey HN! I made Orbit, an iOS app that allows you to see the satellites, planets, and constellations above you in AR, on a 2D map, and on a 3D globe. The app includes more than 15,000 objects tracked by CelesTrack, together with their pass predictions, descriptions, and detailed orbital data. A searchable catalog of all objects is also available, as well as a built-in chatbot designed to answer any space-related questions you might have. This is my first published iOS app, so any feedback is greatly appreciated! App Store: https://apps.apple.com/app/id6772174570
Jul 2026 · nagylukas.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 →