I RECCOMEND TO RUN ON TURBOWARP, THE ENGINE IS VERY SLOW!: https://turbowarp.org/1304944816 W/S to move forward/backward Arrow keys to rotate camera Q and E to move up/down Scroll to change camera speed If in mobile use the "Mobile Controls" feature If you find a cool system, feel free to put it here: https://scratch.mit.edu/discuss/topic/884066/ ! Try solving for the surface temperature on a planet at 0.6 AU with an albedo of 0.4 (40%), with diameter of 11938 km and a earth like greenhouse effect orbiting a main sequence star with temperatures 4628 K and 0.7 solar luminosities and the simplified earth similarity index for exoplanets of the planet. (inspired by some guy, and this planet is also habitable btw)
Note: This is in beta! Some features and objects may be missing. When lag spikes, it is loading the procedural chunk. Just wait and the lag will fade. Inspired by the game "SpaceEngine" by Russian programmer Vladimir Romanyuk 3d Space Engine is a 3d planetarium or viewer of celestial objects, stars, moons, and more! And also, you can explore an INFINITE ammount of stars, planets, AND cool things thanks to the procedural generation! Essential Resources: Catalogues: Hipparcos - https://www.cosmos.esa.int/web/hipparcos Note that this uses the original 1997 Hipparcos data, distance from parallax on HIP objects will be off by a little ammount. Gaia DR3 - https://www.cosmos.esa.int/web/gaia/dr3 #space #spaceengine #3d #planetarium #planet #star Changelog Apr 10, 2026 - 0.1 Beta Release Apr 10 2026 - 0.1.1 - Abbreviated distance counter Apr 21 2026 - 0.2 - Added more stars from Hipparcos and more features. Added zoom in. May 6 - 0.3 - Overhaul update. Added lots of features May 11 - 0.4 - Procedural generation update! May 13 - 0.5 - Optimized the engine May 15 - 0.5.5 - Improved procedural generation and reduced absurd and impossible systems May 16 - 0.5.6 - Further reduced impossible systems and added multiple star systems May 17 - 0.6 - Added galaxies and planets! May 18 - 0.6.1 - Added settings May 24 - 0.6.2 - Reworked layout and the object classifications June 6 - 0.7 (Upcoming) - More hierarchy to systems!