- All Sky Automated Survey for SuperNovae
- Amateur Astronomy
- APOD Submissions
- ARTISTIC EXPRESSION - ASTROPHOTOGRAPHY - By Invitation Only
- Astro-Photography and Similars
- Astronomers Talk
- Astronomical Images
- Astronomy
- astronomy on flickr
- Astronomy, Stars, Planets and Space
- ASTROPHOTO
- Astrophotography - Astronomy - Astrophysics
- Astrophotography - Extragalactic Novae
- Astrophotography - Supernovae
- Backyard Astrophotography
- BBC Sky at Night and Stargazing Live
- Cosmos
- Deep Sky Stacker
- Deep Space Astrophotography
- Deepsky
- Digital Astrophotography
- Everything Space
- Far-Out Outer Space
- Galaxies & Stars Group ( Planets, Moons & Comets too!)
- Global Star Party
- Goddard Space Flight Center
- in explore
- Kennedy Space Center
- NASA
- NASA Johnson Space Center
- NASA Mars Science Laboratory Observing Challenge
- Night Sky Observations
- Real Rockets (no models please)
- Sky @ Night
- Space Exploration
- SPACE LOVERS
- Space stuff
- SpaceX
- Starry Night Astrophotography
- The Night Sky
- The Universe: Astronomy Photography
- Universe and planets
- Wonders of the Sky