Voenix Rising

The Sun is probably the closest thing we’ll ever have to a true Eldritch Abomination. Hear me out here:

• • Older than recorded history; was here longer than any of us and will be here long after we leave. Has a finite beginning and end but is still incomprehensibly ancient
  • Burns itself into your vision instantly and can blind you if you look for too long
  • Further prolonged exposure can cause cancerous growths
  • Non-humanoid shape floating through space; colossal flaming tentacles angrily lash out on occasion
  • Sort of just appeared one day and is now surrounded by the corpses of its stillborn children
  • People used to sacrifice other people to appease it
  • Pretty sure it screams at us sometimes

[Source]