Astronomy
- 🌐 Astronomy Resources - Astronomy Resources
- JPL Photojournal or JPL Images - JPL Planetary Image Archives
- In The Sky: Astronomy News / Interactive Guides
- ISODN Astronomy & Astrophysics: ISODN Astronomy & Astrophysics Discord Community
- ViewSpace: Space Videos and Digital Interactives
- Planet Globe: Virtual Globes
- Sky Calendar: Astronomy Calendar
- Nights on Earth: Astronomical Event Calendar
- Space Weather News or SpaceWeather: Space Weather Updates / Videos
- SunCalc, ShadeMap or MoonCalc: Sun / Moon Position
- Earth and Moon Viewer: Earth / Moon Latitude and Longitude Viewer
- SDO Dashboard: Live Sun Feed
- WikiSky, SkyViewer or 100,000 Stars: Interactive Star Visualizations
- CelesTrack: Earth Orbit Visualization
- TheSkyLive or Atlas of Space: Solar System Simulators / Information
- Space Object Comparison: Compare Sizes Of Celestial Objects
- 1 Pixel moon, LightYear or OMG SPACE: Solar System Scale Model
- Astrogeology: Planetary Maps
- AndroidPlanisphere: Android Star Chart
- Aladin: Astronomical Image quar fViewer / Lite Version
- Siril: Astronomical Image Processor
- ESAsky: Public Astronomical Data
- Stellarium-Web or Stellarium / GitHub: Virtual Stellariums
- WorldwideTelescope: Interactive Telescope Data / Home Page / GitHub
- ESA Hubble, SpaceTelescopeLive or HubbleSite: Hubble Telescope Images
- James Webb Space Telescope or ESAWebb: Webb Space Telescope Sites
- Webb Compare: Webb / Hubble Images
- APOD: Daily NASA Astronomy Images
- ESO Images, NASA2Explore or Astrobin: Astronomy Images
- r/SpacePorn or r/Astrophotography: Astrophotography Subreddits
- Meteor Showers: 3D Meteor Shower Visualization
- Live Meteors: Live Meteor Radio Echoes
- Clear Dark Sky: Star Gazing Weather Forecasts
- Dark Site Finder, DarkSkyMap or GoStarGazing: Star Gazing Site Locators