solitary astronaut before an ancient, fiery portal inscribed with mysterious glyphs under a starlit sky. cosmonaut and stargate

astronaut ancient portal fiery glyphs starlit sky 3d render space exploration mystery gate stars cosmos adventure ruins scifi universe travel technology celestial archaeology journey discovery extraterrestrial stargate interstellar artifact cosmic fantasy otherworldly wormhole teleportation suit enigma intergalactic beams energy mystical history civilization doorway dimension cosmonaut fire glow spaceman