1
ISS Sim to SPACEX
iss-sim.spacex.comAlso covers space · same kind of website
Practice manually docking a SpaceX Dragon 2 vehicle with the International Space Station in this simulator.
Alternatives
The Best SpaceEngine Alternatives in 2026
24 alternatives2 free · 2 open source
Looking for something like SpaceEngine? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 2 are open source.
About SpaceEnginespaceengine.org
VisitExplore a realistic virtual universe on a computer with SpaceEngine’s universe simulator.
Top picks at a glance
First suggestionISS Sim to SPACEXPractice manually docking a SpaceX Dragon 2 vehicle with…Free or freemium optionNights on EarthNights on Earth lists astronomical events including meteor…Open source optionStellariumStellarium renders realistic skies in real time with OpenGL…Another optionExoplanetExploreExoplanet Explore visualizes exoplanet data and provides an…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | ISS Sim to SPACEX | — | Not stated | Web |
| 2 | ExoplanetExplore | — | Not stated | Web |
| 3 | SpaceSim | — | Not stated | Web |
| 4 | MoonCalc | — | Not stated | Web |
| 5 | James Webb Space Telescope | — | Not stated | Web |
| 6 | Aladin | — | Not stated | Web |
| 7 | Map of the Universe | — | Not stated | Web |
| 8 | ViewSpace | — | Not stated | Web |
| 9 | Space Time | — | Not stated | Web |
| 10 | Universe Atlas | — | Not stated | Web |
All SpaceEngine alternatives
2
ExoplanetExplore
exoplanetexplore.vercel.appAlso covers space · same kind of website
Exoplanet Explore visualizes exoplanet data and provides an analysis report.
3
SpaceSim
spacesim.coAlso covers space · same kind of website
Explore the Solar System, change time, and inspect worlds in this browser-based 3D space simulation.
4
MoonCalc
mooncalc.orgAlso covers space · same kind of website
MoonCalc lets visitors explore lunar history with an online calendar and date controls.
5
James Webb Space Telescope
science.nasa.gov/mission/webbAlso covers space · same kind of website
NASA describes the James Webb Space Telescope as an observatory studying phases throughout the history of the universe.
6
Aladin
aladin.cds.unistra.frAlso covers space · same kind of website
Users can explore the sky with Aladin Desktop or its interactive Aladin Lite atlas.
7
Map of the Universe
mapoftheuniverse.netAlso covers space · same kind of website
The Map of the Universe interactively maps 200,000 galaxies from the Milky Way toward the observable universe.
8
ViewSpace
viewspace.orgAlso covers space · same kind of website
ViewSpace offers astronomy interactives, image tours, sliders, and videos for exploring the universe.
9
Space Time
space.pointdynamics.comAlso covers space · same kind of website
A browser-based 3D universe explorer combines the solar system, stars, deep-sky objects, satellites, and galaxies.
10
Universe Atlas
universeatlas.orgAlso covers space · same kind of website
Universe Atlas visualizes scale from the observable universe to a proton, with real stars and planets shown at their measured sizes and distances.
11
Also covers space · open source
Stellarium renders realistic skies in real time with OpenGL and is available for Linux, Windows, macOS, and Haiku.
12
Also covers space · open source
Celestia for Android is a real-time space simulator for exploring the solar system on an Android device.
13
Also covers space · same kind of website
NASA’s Image and Video Library combines searchable imagery and video with downloads and associated metadata.
14
History
nasa.gov/historyAlso covers space · same kind of website
NASA History provides material about the agency's history, including archives and historical research resources.
15
Also covers space · same kind of website · free
Nights on Earth lists astronomical events including meteor showers and planetary conjunctions.
16
Sen
sen.comAlso covers space · same kind of website
Sen provides live 4K video views of Earth captured by its satellites in space.
17
Russian Space Web
russianspaceweb.comAlso covers space · same kind of website
Russian Space Web publishes history and news about the Russian space program.
18
Also covers space · same kind of website · free
NASA e-Books provides a catalog of electronic books published by the space agency.
19
NASA's Eyes
science.nasa.gov/eyesAlso covers space · same kind of website
NASA's Eyes offers browser-based three-dimensional visualizations for exploring NASA data and imagery.
20
JPL Photojournal
photojournal.jpl.nasa.govAlso covers space · same kind of website
NASA Photojournal provides space and mission images, animations, and videos, with topic-based browsing and search.
21
SpaceFromSpace
spacefromspace.comAlso covers space · same kind of website
SpaceFromSpace archives declassified Cold War satellite imagery and modern spaceport photographs on interactive maps.
22
Visible Earth
visibleearth.nasa.govAlso covers space · same kind of website
NASA's Earth Observatory publishes images, stories, and discoveries about the environment, Earth systems, and climate.
23
Documents
ntrs.nasa.gov/searchAlso covers space · same kind of website
NASA Technical Reports Server lets users search NASA technical reports and browse its collections.
24
Apollo in Realtime
apolloinrealtime.orgAlso covers space · same kind of website
Apollo in Realtime presents an interactive journey through the Apollo missions.
No alternatives match this filter.
Alternatives to similar tools
Images24 alternativesHistory24 alternativesDocuments24 alternativesJames Webb Space Telescope24 alternativesVisible Earth24 alternativesNASA Ebooks24 alternatives
What is the best alternative to SpaceEngine?
Based on features, tags and platforms, the closest alternatives to SpaceEngine are ISS Sim to SPACEX, ExoplanetExplore, and SpaceSim.
Is there a free alternative to SpaceEngine?
Yes. Nights on Earth and NASA Ebooks are free or offer a free plan.
Are there open-source alternatives to SpaceEngine?
Yes: Stellarium and AndroidCelestia.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative