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Apps / Gaia Sky

Gaia Sky

Explore the universe in 3D

Zentrum für Astronomie der Universität Heidelberg ✓ Verified

space.gaiasky.GaiaSky
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Gaia Sky is an astronomy visualization platform for desktop and VR that runs on Linux, Windows and macOS. It is developed in the framework of ESA's Gaia mission to chart about 1 billion stars of our Galaxy in the Gaia group of the Astronomisches Rechen-Institut (ZAH, Universität Heidelberg). Explore the Solar System, the Milky Way, and even the most distant galaxies of our Universe with up-to-date, real scientific data.

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Screenshots

Rendering of Earth's surface with the aurora borealis.
Rendering of Earth's surface with the aurora borealis.
Detail view of Saturn and its rings
Detail view of Saturn and its rings
Rendering of Andromeda Galaxy (M31)
Rendering of Andromeda Galaxy (M31)
The inner Solar System with planets and asteroids
The inner Solar System with planets and asteroids
Black hole with accretion disk
Black hole with accretion disk
Earthrise
Earthrise
Solar eclipse representation on the surface of Earth
Solar eclipse representation on the surface of Earth
The Trifid nebula rendered as a volume
The Trifid nebula rendered as a volume
The city of Rome on the surface of Earth, using a virtual texture with Sentinel-II data
The city of Rome on the surface of Earth, using a virtual texture with Sentinel-II data

Observed history

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Upstream releases

Release notes supplied by the developer. These dates are not Flathub package publication times.

3.8.023 Jul 2026

This release brings a major update of the procedural planet generation system, new high-resolution icons, and many bug fixes:

  • Major procedural planet generation overhaul with improved noise, domain warping, 3D biome LUTs, and new presets (lava, tropical, desert).
  • Merge biome + surfacegen passes into a single render pass. This halves GPU bandwidth, eliminates 8-bit quantization.
  • Add tessellation capability detection, plains code, latitude influence, and colored atmospheres.
  • Update all UI icons to higher resolution for HiDPI support.
  • Implement custom control panes for Stereo, Panorama, Planetarium, and Orthosphere view modes.
  • Add pulsar component type and on-focus load for proximity descriptors.
  • Fix cube-sphere and octahedron-sphere UV mapping and tangents.
  • Fix VR UI regression, light glow in cubemap mode, label seams, and star point size adjustment.
  • Update LWJGL3 to 3.3.4, Gradle to 9.6.1, JRE to JDK-26.0.1+8.