I don’t think we realise, exactly, how big our galaxy is:
Facts about our universe:
Speed of light: 186,000 miles per second.
Time required to travel across our galaxy: 100,000 years at the speed of light.
There are at least 350 Billion galaxies in the known universe.
Psalm 8:3-4 King James Version (KJV)
3 When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained;
4 What is man, that thou art mindful of him? and the son of man, that thou visitest him?