astronaut facing an ancient portal emitting a bright light against the cosmic backdrop of stars.cosmonaut and stargate doorway. 3d

astronaut ancient portal bright light cosmic stars 3d render space exploration mystery gate science fiction universe adventure ruins civilization technology time travel doorway dimension cosmos galaxy celestial archaeology suit journey discovery relic extraterrestrial stargate interstellar artifact scifi monument structure enigma intergalactic beams energy mystical fantasy otherworldly wormhole teleportation cosmonaut spaceman glow