stars forming a river in the sky flowing between planets like a cosmic stream

star form river sky flow planet like cosmic stream celestial stellarwind heavenly pulsar gravity constellation distant cosmo milky meteorite observatory cosmogony blackhole meteor universe spacecraft comsic comet fireball nebula stellarswirl starlit cluster hydrogen asteroid astronomical meteoroid cosmonaut stellar galaxy exploration astronaut astronomy planetarium interstellar cosmology extraterrestrial rocket luminous telescope incandescent