space-themed  A time machine materializes before you, its metallic surface gleaming with an otherworldly sheen, Inside, a swirling vortex of energy represents the power to travel through time, Nearby, a menacing black hole looms, its gravitational pull threatening to suck in everything around it, including the time machine, adding an element of danger and intrigue, . cosmic, celestial, stars, galaxies, nebulas, planets, science fiction, highly detailed