a stunning cosmic scene featuring colorful planets and starry background, ideal for space-themed s and astronomy projects

planet astronomy space stunning cosmic scene colorful starry background ideal theme telescope satellite nightsky universe blackhole rocket starfield astronaut distance spaceflight energy adventure starcluster meteor darkmatter gravity solar spaceart quasar milkyway system cluster expanse lightyear spacecraft element aurora spacetime photon atmosphere nebula celestial cosmonaut stellar galaxy alien astral comet cosmicdust featuring planets space-themed designs projects generative