r/sun

14K archived posts · Feb 2011 – Sep 2026

The Sun Subreddit

r/sun

Articles and discussion about our star: The Sun

Created Nov 15, 2008

16KMembers (last snapshot)

14KArchived posts

The Sun is the star at the centre of our solar system. Essentially a gigantic thermonuclear fusion reactor, the Sun is by far the most important source of energy for life on Earth.

#####Rules

Content must be relevant to the Sun
Posts should have descriptive titles
No conspiracy theories or pareidolia
No hostility or aggression

#####Related subreddits

######^The Solar System Subreddit Network

r/Solar_System (Multireddit)

######Stars

r/Sun

######Planets

r/Mercury · r/Venus · r/Earth · r/Mars
r/Jupiter · r/Saturn · r/Uranus · r/Neptune

######Dwarf Planets

r/Ceres
r/Orcus · r/Pluto · r/Salacia · r/Haumea · r/Makemake · r/Quaoar
r/Eris · r/Gonggong
r/Sedna

######Moons

r/Moon
r/Phobos · r/Deimos
r/Io · r/Europa · r/Ganymede · r/Callisto
r/Mimas · r/Enceladus · r/Tethys · r/Dione · r/Rhea · r/Titan · r/Iapetus · r/Phoebe
r/Ariel · r/Umbriel · r/Titania · r/Oberon
r/Triton
r/Charon · r/Dysnomia

######Small Solar System Bodies

r/Asteroid · r/Comets · r/Meteors
r/Eros · r/Vesta · r/Pallas · r/Psyche
r/AsteroidBelt · r/KuiperBelt · r/OortCloud

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